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Top 7 Best Harem Anime (Ecchi Anime) Series [2021 Updated]

Harem is one of the most popular anime genres and we bring to you the list of top 7 best Harem anime series of all time.

Harem is one of the most popular and well-liked anime genres. This type of genre is fairly popular and quite entertaining. If you are new in the world of Anime Harem may be a new term for you. So let us explain to you what exactly is Harem Anime series. Harem is a genre of anime where there is a possibility of a polygamous (intimate relationships with more than one partner) romantic relationship.

This type of Harem anime genre is quite entertaining to watch and moments that are sort of sexy and Kawaii (adorable) becomes a good diversion to take a break from plots that get too serious. This helps in keeping the storyline more interesting and engaging. When it is a yuri (Girls Love) harem series, the polygynous relationship is informally referred to as a female harem or seraglios. When it is a yaoi or (Boy’s Love) harem series, the polyandrous relationship is informally referred to as a male harem, reverse harem.

If you would love to see content that has a combination of action, humor, sexual fun, and a fantastic storyline then you are at the right place. We have made a list of the top 7 best Harem Anime of all time.

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Top 7 Best Harem Anime (Ecchi Anime) Series To Watch Right Now – 2021 Updated 

1. High School DxD (2012)

Best Harem (Ecchi) Anime Series

High School DxD will definitely be your favorite among all the Harem anime genres that will be mentioned in this article. The plot surrounds a man who turned the devil to become a harem king. According to the plot the main lead meets a fallen angel and is killed after which he gets reincarnated by Rias Gremory, a devil whom he finds naked in his room. This leads to a master-servant relationship between the two. And this anime tops our list of the top 7 best Harem anime series of all time.

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 2. Sekirei (2008)

Best Harem (Ecchi) Anime Series

Sekirei is a fantasy and harem genre filled with hot and sizzling anime beauties that are humanoid creatures with special abilities. these beauties have to enter into a bond with certain people with specific genes ‘Ashikabi’ in order to unleash their true power. In order to successfully form a bond, you will have to kiss the one with specific genes. Minato is one such person with the ‘Ashikabi’ gene. He stumbles upon a beautiful Serikei, Musubi, who forms a contract with him which leads to a harem-like situation when more girls come trying to form a contract with him.

3. Monster Musume no Iru Nichijou (2015)

Best Harem (Ecchi) Anime Series

‘Monster Musume no Iru Nichijou’ can be said to be made as a Harem anime genre. This anime is truly deserving to be in our list of top best harem anime genres with their ‘animal-human hybrid’ plot filled with. The show is filled with sizzling hot hybrid beauties who will take you down an ecchi adventure. The story is quite interesting where a boy has to take care of these women but is forbidden to have any kind of intimate relationship with them. This concludes our list of the top 7 best Harem (Ecchi) anime series of all time.

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4. Danjon ni Deai o Motomeru no Wa Machigatteiru Darō ka (2015)

Best Harem (Ecchi) Anime Series

Danjon ni Deai o Motomeru no Wa Machigatteiru Darō ka which is also known as “Is It Wrong to Try to Pick Up Girls in a Dungeon”. The name itself gives you an idea that this is a Harem (ecchi) anime series. The anime is set in a world of fantasy where Gods and humans live together and are trying to get along. The male lead wishes to become a great adventure with the blessing of the goddess Hestia sets off on a journey in the ‘Dungeon’. This is one of the best harem anime genres and definitely worth the watch.

5. Isekai no Seikishi Monogatari (2009)

Best Harem (Ecchi) Anime Series

Coming onto our list of top 7 Best Harem Anime series is Isekai no Seikishi Monogatari. It is a light Isekai anime that follows the adventure of Kenshi Masaki who has been transported to an alternate world. The world he is Isekaied to is known as Geminar and is unstable plunged with the war between countries. Kenshi Masaki was sent to assassinate Lashara who rules the Shtrayu Empire but decides to do otherwise and is later captured by her. This s when a fun Harem series began with a bunch of amazingly hot and sizzling moments between Kenshi Masaki and girls that he meets along the way.

6. Seiken Tsukai no Wārudo Bureiku (2015)

Best Harem (Ecchi) Anime Series

Seiken Tsukai no Wārudo Bureiku aka ‘World Break: Aria of Curse for a Holy Swordsman’ is a fantasy anime with a hint of Harem moments throughout the anime series. The plot is set in a world where monsters exist and humans are trying their level best to defend themselves with special powers. Moroha Haimura is a unique savior as he has memories of his past. This helps in getting more power. He meets his beloved wife and sister from his past life and things get complicated as both the girls start falling for him.

7. Omamori Himari (2010)

Best Harem (Ecchi) Anime Series

Omamori Himari will have you wanting more with an amazing plot filled with a harem of beautiful girls and humans. This is definitely worth the watch and has made its way into our list of best harem anime series. Male lead Yuto Amakawa who is an orphan and taken care of by his childhood friend’s family was left all alone with just an amulet to remember his family from. The amulet was meant to save him from supernatural being but had lost power but gets saved by a beautiful cat demon Himari. The series progresses into a Harem plot as more girls get attracted to him.