Are you looking for a new anime to add to your collection that will keep you on the edge of your seat? If so, then you’re in luck because we have compiled a list of the best ecchi harem anime with badass male main characters. These shows are perfect for fans of sexual content, multiple female love interests, and intense action scenes.
Ecchi anime is known for its explicit depictions of sexuality, while harem anime features multiple female love interests for the male protagonist. Combining these two elements creates a unique blend of romance and action that can be both entertaining and thrilling. And when it comes to badass male main characters, these shows don’t disappoint. From sword-wielding warriors to powerful pilots, these guys know how to handle themselves in any situation.
So whether you’re a fan of shounen or mecha genres, there’s something here for everyone. So sit back, relax, and prepare yourself for some steamy romance and intense battles in these must-watch anime series. With so many options to choose from, you’re sure to find something that will satisfy your cravings for ecchi harem anime with badass male main characters.
Best Harem Anime with Badass Male MC

The Testament of Sister New Devil
- Badass Factor Rating: ★★★★☆ (4 stars out of 5)
- Ecchi Factor Rating: ★★★★★ (5 stars out of 5)
The Testament of Sister New Devil” is a thrilling and titillating anime that combines elements of ecchi and harem genres with a touch of badassery. The story revolves around Basara Tojo, a high school student who suddenly finds himself in a rather unconventional family situation. When Basara’s father, Jin, remarries, he introduces Basara to his two new stepsisters, Mio Naruse and Maria Naruse. Little does Basara know that Mio and Maria belong to a powerful demon clan, while he is destined to join the hero clan.
From the very beginning, Basara is thrown into a whirlwind of enticing encounters and dangerous situations. Mio, the alluring demon princess, attempts to establish a master-servant contract with Basara, but due to a twist of fate, he becomes the master instead. This reversal sets the stage for numerous ecchi scenarios, where Basara finds himself in close and often compromising situations with the girls.

Haganai: I don’t have many friends
Haganai: I Don’t Have Many Friends is a Japanese anime about a group of misfits who band together to try to find friends. The main character, Kodaka, is trying to make a good impression at his new school, but his blond hair and scary expression quickly brand him as a violent delinquent.
The Neighbor’s Club is for those who don’t have friends, and its members include eroge fan Sena Kashiwazaki and other oddball outcasts. They acquire social skills and how to blend in through their club activities, which will ideally assist them to make friends.
This anime is full with amusing oddballs, and it’s a must-see for anybody who appreciates comedy or slice-of-life episodes.

Love After World Domination
- Badass MC Rating: ★★★½☆ (3.5 stars out of 5)
- Ecchi Factor Rating: ★★★★½ (4.5 stars out of 5)
Love After World Domination is an ecchi anime that follows the secret romance between Fudou Aikawa, leader of the heroic group “Gelato 5,” and Desumi Magahara, combatant leader of the evil secret society “Gekko.” Nicknamed “Red Gelato,” Fudou is dedicated to protecting Japan, while Desumi, the “Reaper Princess,” is bent on world domination.
Despite being mortal enemies, the couple sneaks away from battle to spend time together and navigates the challenges of dating while trying to keep their relationship a secret from their comrades. With plenty of ecchi elements, Love After World Domination is a steamy and exciting watch for fans of the genre.

SUPER HXEROS
- Badass MC Rating: ★★★★☆ (4 stars out of 5)
- Ecchi Factor Rating: ★★★★☆ (4 stars out of 5)
SUPER HXEROS is an action-packed ecchi harem anime with a unique twist. The plot centers around the Kiseichuu, alien beings that are attempting to take over the world by taking away humanity’s sexual drive. To combat this threat, a group of HxEros users are formed, wielding powerful weapons that rely on erotic energy as a source of power.
The main character of the show is Retto Enjou, a high schooler with a strong hatred towards the Kiseichuu. He joins the HxEros team and fights to protect humankind, all while living in a house full of lustful girls that help him maintain high levels of libido.

Sekirei
- Badass MC Rating: ★★★☆☆ (3 stars out of 5)
- Ecchi Factor Rating: ★★★★☆ (4 stars out of 5)
Sekirei, with its adventurous storyline and badass male main character, is one of the most popular ecchi harem anime of all time. Minato Sahashi begins as an unreliable teenager who has twice failed college examinations, but his entire destiny changes when Musubi, a supernatural woman from outer space, enters his life. Musubi kisses him to unleash additional powers deep within him, and the two quickly create a bond.
The series portrays Minato’s journey through the ‘Sekirei Plan,’ which requires him to compete against other humans while using his newly discovered abilities. Along with many battle scenes and scheming enemies, viewers are treated to a plethora of fan-favorite intimate moments between Minato and the many Sekirei heroines. The series features plenty of suggestive scenes, as one would expect from an ecchi harem anime, which adds to its entertainment value.
Overall, Sekirei is an action-packed, ecchi harem anime series that will keep you thrilled and entertained throughout!

Campione!
- Badass MC Rating: ★★★★★ (5 stars out of 5)
- Ecchi Factor Rating: ★★★☆☆ (3.5 stars out of 5)
Campione! is an ecchi anime that follows the story of Godou Kusanagi, a high school student who becomes a “Campione” – or “God Slayer” – after defeating a Heretic God in mortal combat. Godou’s new status attracts other Gods who wish to challenge him and a group of devoted followers, mostly women, who are willing to aid him in his battles. The plot follows Godou as he fights to save humanity from the Heretic Gods in a conflict between Heaven and Earth. With plenty of ecchi elements, Campione! is an exciting and sexy watch for fans of the genre.

Death March kara Hajimaru Isekai Kyousoukyoku
- Badass Factor Rating: ★★★★☆ (4 and a half stars out of 5)
- Ecchi Factor Rating: ★★☆☆☆ (2 stars out of 5)
The anime Death March to the Parallel World Rhapsody centers on Ichirou Suzuki, a developer who accidentally enters a world of fantasy role-playing games. He must use his gaming expertise to defeat his foes in this new realm so he may return home.
This anime has plenty of comedy, action, and adventure, along with some echi-components for good measure. Death March to the Parallel World Rhapsody should be high on your list of must-watch anime if you’re searching for a good time.

THE HIDDEN DUNGEON ONLY I CAN ENTER
- Badass MC Rating: ★★★☆☆ (3 stars out of 5)
- Ecchi Factor Rating: ★★★★½ (4.5 stars out of 5)
The Hidden Dungeon Only I Can Enter is one of the best ecchi harem anime with a badass male MC. Noir Stalgia is a noble, yet he is at the bottom of the social order and is regarded like garbage by his other nobles. When academic opportunities fail him, an angel in disguise appears to save him- The Great Sage! Noir gets extraordinary powers by exploring a hidden dungeon and meeting Olivia Servant—but at a cost.
Every time he tries to use it, his life points are reduced, and he must turn to worldly pleasures like kissing his childhood friend to restore them. With these new abilities, our protagonist sets out on a journey as a student at Hero Academy, experiencing love along the way. This series is full of comic ecchi moments and harem aspects, making it an excellent pick for viewers searching for an interesting plot with a badass male MC.

Infinite Stratos
- Badass MC Rating: ★★★☆☆ (2.5 stars out of 5)
- Ecchi Factor Rating: ★★★★☆ (3.5 stars out of 5)
In Infinite Stratos, 15-year-old Ichika Orimura is forced to attend an all-female boarding school because he is the only male able to fly a female-piloted exoskeleton.
While there are some badass moments in the show, they are mainly overpowered by the ecchi components. From its numerous shower or bath scenes to its massive quantities of panty shots, Infinite Stratos is jam-packed with fan service. This is the show for you if you like a harem anime with an overpowering male protagonist and a lot of skin.

Chivalry of a Failed Knight
- Badass MC Rating: ★★★★★ (4.5 stars out of 5)
- Ecchi Factor Rating: ★★★★★ (4.5 stars out of 5)
Chivalry of a Failed Knight introduces us to an extraordinary fantasy world, inhabited by characters with soul abilities. The protagonist is Ikki Kurogane, who has somehow ended up as the lowest ranking ‘Blazer’ student at Hagun Academy despite his desire and effort. But, it looks that all is not lost when Ikki meets Stella Vermillion, an A-ranked Blazer who also happens to be a princess. Stella challenges him to a duel with profound consequences – whomever loses shall become the slave of the winner!
Ikki will make new friends and earn knowledge on his adventure through this fast-paced anime adventure, which will help him overcome various challenges along the road. It’s packed with intense combat featuring unique soul abilities (including fantastical creatures), providing fans with lots of exciting moments; it’s one well designed harem series for sure!

ARIFURETA
- Badass MC Rating: ★★★★★ (5 stars out of 5)
- Ecchi Factor Rating: ★★★½☆ (3.5 stars out of 5)
ARIFURETA is an anime that not only has a badass male protagonist, but also features the ever-popular Ecchi Harem genre. We follow Hajime Nagumo and his friends as they are summoned to another world to save mankind. Eventually, Hajime begins to realize that he is different from all of his friends since only he has earned an inferior transmutation ability with no true offensive strength, which conflicts his strong desire for justice.
Yet, Nagumo is not easily discouraged on this unusual journey and explores the Great Orcus Labyrinth to obtain strength – only to be betrayed by one of his own classmates! Luck ultimately smiles on him when, despite his tragedy, our protagonist survives at the bottom of an abyss and chooses to battle courageously even though dangerous monsters await him ahead. We can fully immerse ourselves in this fascinating journey until Hajime and his buddies get home safe and sound, thanks to some help (or hindrance) from a frequently imprisoned vampire girl named Yue, as well as additional surprises along the way!

Saijaku Muhai no Bahamut
- Badass MC Rating: ★★☆☆☆ (2 stars out of 5)
- Ecchi Factor Rating: ★½☆☆☆ (1.5 stars out of 5)
Undefeated Bahamut Chronicle is an anime comedy series with an ecchi harem and a badass male MC. Lux, a former prince of the Arcadia Empire fallen by revolt five years before, accidently trespasses in a female dormitory’s bathing area and discovers the princess Lisesharte naked, provoking her anger. As revenge, Lisesharte challenges Lux to a battle using Drag-Rides, ancient armored mechanical weapons excavated from ruins all around the planet. Lux was formerly known as ‘the strongest Drag Knight,’ but he is now recognized as ‘the undefeated weakest’. This challenge sends him to a female-only academy that trains royals to be Drag Knights, putting him in the society of even more stunning members of royal families!
Because of its hilarious plotline centered on romance between our leading protagonist and his numerous female admirers, Undefeated Bahamut Chronicle has received mostly positive reviews. Yet, it takes an old-fashioned method of portraying this old concept, which some deem cliche when compared to recent ecchi harem series. Yet, Undefeated Bahamut Chronicle distinguishes out among its competitors with a good plot and plenty of epic action moments.

IN ANOTHER WORLD WITH MY SMARTPHONE
In “In Another World with My Smartphone,” an accidental act of divine clumsiness sends Touya Mochizuki to a magical fantasy realm. As a compensation for the mishap, God grants him one wish, allowing Touya to start afresh in this enchanting world with a unique advantage—he gets to keep his smartphone.
Embracing his new life, Touya becomes immersed in a world teeming with magic, where he encounters an array of captivating young ladies eager to capture his attention. From the spirited twins Linze and Elze Silhoueska to the graceful Yumina Urnea Belfast, along with the enigmatic Leen and the feisty Yae Kokonoe, these charming girls both vex and support Touya on his quest to unravel the secrets of his new reality.
While the anime delights in its magical elements and endearing characters, it also delivers a considerable amount of fan service, catering to viewers who appreciate those moments of playful and titillating interactions. With its blend of romance, fantasy, and light-hearted humor, “In Another World with My Smartphone” offers an enjoyable harem ecchi experience, sure to captivate fans seeking an engaging and slightly provocative journey.
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Busou Shoujo Machiavellianism
- Badass Factor Rating: ★★★½☆ (3.5 stars out of 5)
- Ecchi Factor Rating: ★½☆☆☆ (1.5 stars out of 5)
Busou Shoujo Machiavellianism is an anime that follows Fudo Nomura, a young guy who was expelled from his previous high school following a major brawl. He subsequently transfers to the exclusive Aichi Symbiosis Academy, where female pupils have been viciously oppressing their male classmates out of inappropriate paranoia.
The “Supreme Five Swords,” a five-member vigilante organization commanded by Rin Onigawara, holds Nomura at sword-point and forces him to accept their rules or leave the school. Nomura, on the other hand, confronts the Supreme Five Swords in order to demonstrate that real morality does not rely on brute power.
While I dislike this anime due to its narrow-minded premise, it may be enjoyable for other individuals.
How Not to Summon a Demon Lord

- Badass Factor Rating: ★★★★☆ (4 stars out of 5)
- Ecchi Factor Rating: ★★★½☆ (3.5 stars out of 5)
How Not to Summon a Demon Lord is an ecchi harem anime that follows the story of Takuma Sakamoto, a shut-in gamer who is summoned to another world as the Demon Lord Diablo. In this new world, Takuma is surrounded by beautiful women who are all eager to serve him. However, Takuma is not interested in being a tyrant. He just wants to find a way to return to his own world.
Takuma is a badass male MC. He is strong, intelligent, and resourceful. He is also a skilled tactician and a powerful magic user. Takuma is not afraid to fight for what he believes in, and he is always willing to help those in need.
The ecchi factor in How Not to Summon a Demon Lord is relatively low. There are a few scenes with fan service, but they are not gratuitous. The anime is more focused on the action and adventure than on the ecchi.
Overall, How Not to Summon a Demon Lord is an enjoyable anime for fans of the ecchi harem genre. It has a strong male MC, plenty of action, and a few scenes with fan service. If you are looking for an anime that is both entertaining and sexy, then How Not to Summon a Demon Lord is worth checking out.
Trinity Seven

Trinity Seven is an exhilarating harem ecchi anime that combines elements of magic, action, and romance. The story revolves around Arata Kasuga, a courageous and determined young man. One fateful day, Arata’s town is engulfed by the enigmatic “Breakdown Phenomenon,” resulting in the disappearance of its inhabitants. In this dire situation, Arata is entrusted with a powerful grimoire by his childhood friend, Hijiri Kasuga.
When Arata’s artificially reconstructed world begins to crumble, he encounters Lilith Asami, who presents him with a grave ultimatum: surrender the grimoire or face death. Opting for a different path, Arata chooses to enroll in the prestigious Royal Biblia Academy—a secret magic school that houses six exceptional individuals known as the Trinity Seven. Alongside Lilith and his newfound companions, Arata embarks on a quest to uncover the truth behind the phenomenon and rescue his beloved hometown.
Arata’s unwavering resolve and tenacity define him as a truly badass male protagonist. Unyielding in his convictions, he fearlessly challenges anyone who opposes him. His refusal to back down, especially when he knows he is right, showcases his unrelenting spirit. With the support of his friends and the desire to save Hijiri, Arata becomes a force to be reckoned with, striving to prevent the destruction of his cherished home and reunite with his best friend.
High School DxD

High School DxD is an ecchi-themed anime that delivers a perfect blend of action, comedy, and fan service. The story revolves around Issei Hyodo, a mischievous high school student who meets an unfortunate demise at the hands of a fallen angel. However, his fate takes an unexpected turn when he is resurrected as a powerful demon by the alluring Rias Gremory, his classmate.
Empowered with the ability to summon demons, Issei embarks on thrilling battles against the fallen angels, showcasing his badass nature. High School DxD stands out among harem anime due to its intense and risqué ecchi elements, providing a titillating experience for viewers. With a charismatic and humorous protagonist, the series offers a captivating mix of supernatural action and lighthearted moments, ensuring an enjoyable watch for fans of the genre.
Featuring an enticing storyline and a wide array of colorful characters, High School DxD is a top choice for those seeking an ecchi harem anime with a badass male protagonist. Prepare for a wild ride filled with captivating action sequences and plenty of steamy moments that will leave fans yearning for more.
Blade Dance of Elementalars

Bladedance of Elementalers is an ecchi anime with a powerful male protagonist. Kamito Kazehaya trains for the Blade Dance, a fight event in which he will meet the strongest elementalist.
Claire is an uncommon elementalist. She intended to make a deal with a powerful spirit in order to boost her power as a “elementalist.” To make matters worse, Claire insists that Kamito must instead become her contracted spirit!
The anime has several ecchi aspects, such as nearly naked Claire Rouge and other female characters. Despite this, the show is still entertaining and plenty of chuckles and entertainment value.
Hundred

Hundred is a thrilling harem anime that introduces us to the charismatic protagonist, Hayato Kisaragi. In this action-packed series, Hayato possesses an extraordinary compatibility level with the fearsome weapon known as the “Hundred.” When he is invited to enroll at the prestigious military academy, Little Garden, Hayato’s life takes an exciting turn.
Within the academy’s walls, Hayato captures the attention of numerous female classmates, setting the stage for an enticing harem dynamic. As he navigates the intricacies of his new surroundings, Hayato becomes embroiled in a series of captivating scandals that add an extra layer of drama to the story.
With its blend of intense action, romantic tension, and a touch of ecchi elements, Hundred offers viewers an engaging and exhilarating harem experience. Join Hayato as he strives to protect those dear to him while unraveling the mysteries that lie within the world of Hundred.
Gakusen Toshi Asterisk

The Asterisk War is a thrilling harem anime that features a truly formidable male protagonist. The story revolves around Ayato Amagiri, a determined young man who enrolls in the prestigious Seidoukan Academy. Little does he know that his journey will thrust him into a fierce student body war for power and dominance.
This action-packed anime offers a generous dose of fan service, making it an irresistible choice for fans seeking a combination of intense battles and tantalizing moments. Prepare yourself for some captivating ecchi scenes, including instances where Julis-Alexia von Riessfeld, the mesmerizing Witch of Resplendent Flames, finds herself caught in compromising situations.
The Asterisk War is a must-watch if you’re looking for an anime that seamlessly blends action, romance, and a touch of cheeky allure. Immerse yourself in the high-energy battles and experience a captivating harem story that will keep you on the edge of your seat. Don’t miss out on this captivating series that offers both thrills and plenty of eye-catching fan service.
Strike the Blood

Strike the Blood is an anime about a high school student named Kojou Akatsuki who unexpectedly develops vampire skills. When it is found that he is the fourth primogenitor, an enormously strong vampire, he is thrown into the spotlight.
Yukina Himeragi, an apprentice sword-shaman, is dispatched by the Lion King Organization to observe and, if necessary, murder him. However, as Kojou comes to grips with his talents and they both strive to preserve their city from different chaotic forces, the two develop an odd partnership.
The Fruit of Grisaia

The story of Yuuji Kazami, a transfer student who has recently been enrolled to Mihama Academy, is told in the anime The Fruit of Grisaia. He rapidly realizes that this school is unlike any other he’s ever attended; it only has the principal and five other students, all of whom are female.
As he gets to know them better, he discovers the reality behind their tiny group: they’ve all had painful experiences that they’ve kept hidden from the rest of the world.
While The Fruit of Grisaia might be a good watch for some, I find it difficult to appreciate because of the behavior of some of the characters.
The Familiar of Zero

In the magical realm of wands, cloaks, and nobility, we meet Louise Françoise Le Blanc de La Vallière, a wizard with a larger-than-life ego. However, her summoning ritual takes an unexpected turn when it results in a catastrophic explosion. Emerging from the aftermath is Saito Hiraga, an ordinary boy who finds himself abruptly thrust into Louise’s world.
Saito quickly discovers that his role in this magical realm is far from glamorous. Instead of being treated as an equal, he becomes Louise’s unwilling servant, forced to perform menial tasks such as cleaning her clothes and eating humble meals on the ground. Despite this servitude, Saito’s resilience shines through as he navigates his unfamiliar circumstances.
As the story unfolds, we witness the gradual transformation of both characters. Saito learns to adapt to his new life, finding hidden strengths within himself. Meanwhile, Louise defies her initial reputation, proving that there is much more to her than meets the eye. Together, they embark on a journey that challenges societal norms and explores the complex dynamics of power, loyalty, and personal growth.
“The Familiar of Zero” is a captivating harem anime that blends fantasy, comedy, and romance. Join Saito and Louise as they forge an unlikely bond, unravel mysteries, and defy expectations in a world where magic and personal connections intertwine.
Plunderer

Plunderer is an action-packed anime set in a world where social status is determined by “Counts” – numbers engraved on a person’s body. The main character, Hina, sets off on a journey to find the legendary Aces, heroes of a war that happened 300 years ago.
Along the way, she meets Licht Bach, a mysterious masked man with a negative Count, and Nana, the owner of a Tavern. The group sets off on a quest to uncover the truth about their world and the legendary Aces. Plunderer has some ecchi elements and is a thrilling watch for fans of the action genre.