20 Sexiest Ecchi Harem Anime to watch in 2023

Welcome to Harmony of Ecchi – Harem Anime!

Ecchi is gripping, fun for-all and popular for-all time. And, Ecchi and Harem go hand in hand because their harmony, symphony makes all the good qualities of an Ecchi even better.

At this point, you will want to find the best Ecchi Harem anime – which is hard – and by aid of various information such as the Summary, MAL Score, you can easily choice in this list, where you will find Ecchi Harem Anime with the main characters who live the dreams. And have fun.

1- High School DxD

MAL Score: 7.34 Year: 2012 Rated: Intense (R+)

Genres: Comedy, Ecchi, Harem, Romance

Issei is tricked and killed by a fallen angel, but is reincarnated as a demon by Rias Gramory, and from that day serves as a subordinate of Rias Gremory, the hottest girl on Issei’s campus and also a high-level demon. Now, he is surrounded by beautiful girls, subordinates of Rias Gramory.

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2- Heaven’s Lost Property

MAL Score: 7.27 Year: 2009 Rated: Moderate (pg-13)

Genres: Comedy, Ecchi, Harem, Sci-Fi, Romance

Ever since he was a child, Tomoki Sakurai has always woke up with tears after an angel in his dreams asking for help. And Tomoki’s life is complicated when a strange girl falls from the sky and begins to call his master. It turns out that the girl is an angel, Ikaros..

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3- To LOVE-Ru

MAL Score: 7.00 Year: 2008 Rated: Intense (R+)

Genres: Comedy, Ecchi, Harem, Romance

Rito Yuuki cannot open up to the girl he loves, Haruna Sairenji, due to shyness and various misfortunes. On the top of it, one day, while taking a bath, he encounters a beautiful, tailed (and fully naked!) girl right in the tub, Lala Satalin Deviluke, the princess of the planet Deviluke, and Rito unknowingly and accidentally gets engaged to her.

Rito hasn’t lost his will to open up to the girl he loves, but now has Lala and plus, in the future a legion of harem girls awaits him.

4- Haganai: I Don’t Have Many Friends

MAL Score: 7.18 Year: 2011 Rated: Moderate (R+)

Genres: Comedy, Ecchi, Harem, Love Polygon, Romance

Transferring to a new school, Kodaka Hasegawa’s goal is to make a positive impression and maybe even make few friends, but his natural brown-blonde hair mix and wild gaze that make his look like a dangerous “Yankee” are again in action to prevent this.

But everything changed when he saw Yozora Mikazuki while she talking to her imaginary friend “Tomo”. After sharing their loneliness with each other, they open a school club for loners! In this club filled with various outcasts like himself, Kodaka finally able to make real friends.

5- Is This a Zombie

MAL Score: 7.36 Year: 2011 Rated: Mild (R)

Genres: Action, Comedy, Ecchi, Harem, Supernatural

Ayumu Aikawa is killed while investigating a suspicious house, begins to investigate his own death after a cute sorceress girl brings him back to life as a zombie.

One day, Ayumu sees a magical young girl, Haruna, while fighting a monster, so Haruna must make him forget what he saw. But instead, Haruna’s magic power is accidentally passed on to Ayumu. Now while investigating himself death, he must also take on the task of destroying the monsters called ‘megola’ instead of Haruna.

6- Saekano: How to Raise a Boring Girlfriend

MAL Score: 7.49 Year: 2015 Rated: Mild (pg-13)

Genres: Comedy, Otaku Culture, Romance

Tomoya Aki is an otaku fond of anime and light novels. His interest in captivating stories and characters from TV shows and games led him to create the best visual novel game ever. However, he cannot do this alone, for this he establishes the “Blessing Software“, which includes the 3 most popular students of the school.

Now, the group needs inspiration for the foundation of the game, and by chance, Tomoya encounters the docile and beautiful Megumi Katou, in whom he somehow sees protagonist-like traits.

7- Monster Musume: Everyday Life with Monster Girls

MAL Score: 6.98 Year: 2015 Rated: Intense (R+)

Genres: Comedy, Ecchi, Fantasy, Harem, Romance, Seinen

A snake-human mixed girl, Miio, enters the quiet life of Kurusu Kimihito, who “voluntarily” enters the Law of Interspecies Exchange. Kurusu is not unscrupulous enough to turn this embarrassed eyed girl away, but he is far from knowing that a pack of monster girls will later swarm into his house!

Thinking with his hormones instead of brain is not as difficult for Kurusu to live with sexy monsters as to obey the laws that prevent him from having sexual interactions with them.

Fortunately, he gains the experimental marriage provision with one of the girls; A increased rivalry, in which Kurusu will be crushed, with a lot of monster girls vying for his.

8- Tenchi Muyo! War on Geminar

MAL Score: 7.76 Year: 2009 Rated: – (R+)

Genres: Action, Comedy, Ecchi, Harem, Isekai, Mecha

After kidnapped, Kenshi Masaki finds himself in the Geminar World, home to the clashes of the Sacred Mechanoids working with magical power.

Apparently he has a superior ability to use mechanoids, and in order to return home, he agrees to assassinate the newly crowned Princess Lashara Aasu XXVIII.

However, when he has an opportunity to kill her, he doesn’t use it, intead is captured by Lashara and his superior abilities make him her servant. As her servant, Kenshi embarks on a journey to the overwhelming majority female “Holy Land”, which serves as an academy to train Sacred Mechanoid pilots, not knowing that something big and bad is coming.

9- Mayo Chiki

MAL Score: 7.24 Year: 2011 Rated: Moderate (R+)

Genres: Comedy, Ecchi, Harem, Romance

Series revolves around Kinjirou Sakamachi, who acts as a human punching bag for his wrestling older sister and mother, and develops a tough body along with gynophobia (fear of women).

When Kinjiro opens a toilet in the men’s room, mistakenly he discovers that Subaru Konoe, the butler of sadistic Kanade Suzutsuki and a popular boy at school, is actually a girl! And since Subaru can’t continue as a servant if she turns out to be a girl, Kanade promises to help cure Kinjirou’s phobia in exchange for his silence.

10- Trinity Seven

MAL Score: 7.07 Year: 2014 Rated: Modarate (pg-13)

Genres: Comedy, Ecchi, Harem, School, Romance

On the day the bright sun goes dark, Arata Kasuga’s village is destroyed, a “Breakdown Phenomenon” that causes the disappearance of everyone who lives there, including his childhood friend.

Fortunately, he manages to rebuild his world using the spellbook given to him by his childhood friend, and after encountering Lilith Asami, who was sent to investigate this phenomenon, he enrolls in a top-secret magic school tasked with preventing such supernatural disasters. Now, he finds himself the owner of a harem of beautiful and deadly wizards..

Good Ecchi Harem Anime

11- Sekirei

MAL Score: 7.05 Year: 2008 Rated: Intense (R+)

Genres: Action, Comedy, Ecchi, Harem

108 charming humanoid alien women with superhuman powers, like Musubi who saw Minato’s potential and kissed him, are called the Sekirei. Minato Sahashi’s fate lies in his genes, even if he doesn’t know yet, because the charming Sekireis seek their masters who carry the Ashikabi gene for partnership.

With Musubi’s kiss, Minato becomes her Ashikabi, and finds himself in the competition of 5 beautiful girls for their Ashikabi while in the middle of the a deadly battle for survival called the “Sekirei Plan”.

Best Harem Ecchi Anime

12- Strike the Blood

MAL Score: 7.05 Year: 2013 Rated: Mild (R+)

Genres: Ecchi, Harem, Action, Fantasy, Vampire

Kojou Akatsuki is an ordinary high school student. But turns out to be no ordinary person on Itogami Island, which is full of demons and monsters; The “fourth true ancestor” is a legendary powerful vampire who shouldn’t exist.

Before long, a novice Sword Shaman named Yukina is tasked with tracking down Koujo for the risks he represents and killing the world’s most powerful vampire, should he become a threat. However, the two form an alliance to protect the city from various chaotic forces emerging, and the two team up with the many students who channel Koujo’s libido, the source of his powers.

13- Date a Live

MAL Score: 7.17 Year: 2013 Rated: Moderate (R)

Genres: Ecchi, Comedy, Harem, Romance

Since the first “spatial quake” occurred thirty years ago and claimed the lives of 150 million people, these quakes intermittently disturbing the world, albeit on a milder scale.

Shidou Itsuka sees a girl in the middle of a spatial quake, then learns from his cute sister Kotori that this girl is the “spirit” that caused the quakes, and one more thing; To stop this, he must go on a date with the spirits and seal their power by kissing them after he has made them fall in love with her.

14- Outbreak Company

MAL Score: 7.21 Year: 2013 Rated: – (pg-13)

Genres: Comedy, Harem, Otaku Culture, Isekai, Parody

Shinichi Kano is an otaku fond of Japanese anime, manga, and games. Kidnapped on the first day of new job, Shinichi didn’t know that being an Otaku would suddenly take him to a fantastical, mystical realm, the Eldant Empire. But it seems the Japanese government has chosen him as “Otaku Missionary“.

Where he came through a portal, in this new realm, he is expected to spread Japanese culture and has the full support of Princess Petralka of the Eldant Empire on the way.

15- Yuuna and the Haunted Hot Springs

MAL Score: 7.01 Year: 2018 Rated: Moderate (R+)

Genres: Comedy, Ecchi, Harem, Supernatural

Kogarashi, a high school boy who has seen ghosts since birth, finds a haunted inn that offers a free room to anyone who can banish a ghost. But the ghost is an innocent young girl, Kogarashi helps her move on rather than purify her. While working on it, Kogarashi is drawn into the paranormal pranks of the other residents of the inn and even his new schoolmates.

Best Harem Ecchi Anime

16- Demon King Daimao

MAL Score: 6.76 Year: 2010 Rated: Moderate (R+)

Genres: Ecchi, Harem, Action, Comedy, Fantasy

Aiming to change the world and become one of the top magicians of his country, the virtuous Akuto Sai vows to evolve himself and improve the world before transferring to Constant Magic Academy; -On the day he joined the academy, the academy says the opposite- the aptitude test prophesies that he will become a Demon King!

Surrounded by his harem of beautiful girls, Akuto is intent on showing that he can stand in the way of his destiny, but everything he says and does seems to reinforce that he is destined to become the Demon King.

Ecchi Harem Anime

17- Campione!

MAL Score: 6.94 Year: 2012 Rated: – (pg-13)

Genres: Ecchi, Comedy, Harem, Romance

Godou Kusanagi sets off to Italy to fulfill a wish of his grandpa, not knowing that he will meet the evil Gods found in unexplained blitz, earthquakes. He, and Erica Blandelli, who fighting the Gods to protect society, are drawn into a war between two evil gods, god bless, Godou manages to kill a god, the god of war!

That means taking on the title of “Campione” (God Slayer) which will lure him into the battle with heaven. The challenge of being Campione lies in Erica and the constantly awkward and misunderstood situations her create, and also a group of religious girls who want to help to Campione in battles with Gods!

Best Ecchi Harem Anime

18- Freezing

MAL Score: 6.81 Year: 2011 Rated: Intense (R+)

Genres: Action, Drama, Ecchi, Romance, Seinen

As humanity is threatened by aliens called Nova from another dimension, the military trains girls called the genetically modified Pandoras and their boy partners, “Limiters“, in military academies.

The death of Kazuya Aoi’s sister, a Pandora, caused Kazuya to decide to go to the academy. And there is a girl named Satellizer el Bridget, who looks exactly like his dead sister and who hates being touched her more than anything, known as “Untouchable Queen”.

When Kazuya first sees Satellizer, he rushes towards and hugs her tightly, but Satellizer doesn’t back down. Moreover, she lets Kazuya be her limiter.

19- Rosario to Vampire

MAL Score: 6.76 Year: 2008 Rated: Moderate (R+)

Genres: Comedy, Ecchi, Harem, Romance, Shounen

Youkai Academy is a school that teaches to mythical creatures in human form, Yōkai students to coexist with humans. But the school has one golden rule; All people in the garden must be killed immediately!

Due to bad grades, Tsukune Aono was not accepted to any private high school, but – luckily? – he attended Youkai Academy by chance. There, he befriends the most beautiful girl on campus, Moka Akashiya, who is later revealed to be a vampire fascinated by the taste of his blood.

20- Shuffle!

MAL Score: 7.03 Year: 2005 Rated: Moderate (R+)

Genres: Ecchi, Harem, Comedy, Romance, Seinen

The opening of two worlds’ door changes Rin’s quiet life with hubbub and fun. The god king and demon king’s family and of course their two beautiful daughters became Rin’s next door neighbors and girls seem to be deeply in love with him, and there are many other girls in this situation!

The 5 Best Ecchi Harem Anime

Highschool DxD
Heaven’s Lost Property
To LOVE-Ru
Haganai: I Don’t Have Many Friends
Is This a Zombie