After six years of living separately, brother and sister Akiko and Akito Himenokouji are finally reunited. The two used to be quite close, until their parents died and they were sent to live with separate foster families. Now the two can live together and go to the same school as brother and extremely loving sister!
It doesn’t take long before it becomes abundantly clear that Akiko has a huge brother complex. Unfortunately for Akiko, her brother only sees her as a little sister he must protect. But that won’t stop her from trying to win her brother’s affections!
Things are only complicated when more girls move in with the siblings, making Akiko even more determined than ever to keep her brother’s eyes only on her. That’s tough to do with other girls flaunting their swimsuit-clad bodies at Akito, fighting over who gets to take care of him, and otherwise meddling in Akiko's plans for her brother. This is going to be one fun household…!
OniAi has finished airing and it has 12 Episodes. It is also Known as: お兄ちゃんだけど愛さえあれば関係ないよねっ, As Long as There's Love, It Doesn't Matter If He Is My Brother, Right?
Genres: Ecchi , Romance , Japan , Slice of Life , Comedy , Present , Harem , School Life
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Top 10 Anime Like OniAi (Oniichan dakedo Ai sae Areba Kankeinai yo ne!) [2024 List]
- 10. Kawaikereba Hentai demo Suki ni Natte Kuremasu ka?
- 9. Kanojo ga Flag wo Oraretara
- 8. Mamahaha no Tsurego ga Moto Kano datta
- 7. Kono Naka ni Hitori, Imouto ga Iru!
- 6. Saikin, Imouto no Yousu ga Chotto Okashiinda ga.
- 5. Oniichan no Koto nanka Zenzen Suki ja Nai n da kara ne!!
- 4. Kiss x Sis (TV)
- 3. Sakurasou no Pet na Kanojo
- 2. Oreshura
- 1. Oreimo
10. Kawaikereba Hentai demo Suki ni Natte Kuremasu ka?
The romantic comedy begins when a love letter arrives out of the blue for Keiki Kiryū, an ordinary high school student who has never had a girlfriend as long as he has been alive. The letter does not include the sender's name — but the letter does include white panties. In the process of investigating who could be his "Cinderella who left behind her panties," Keiki discovers every candidate is uniquely perverted and desperately interested in having him participate in their perversion.
Hensuki: Are you willing to fall in love with a pervert, as long as she’s a cutie? has finished airing and it has 12 Episodes. It is also Known as: 可愛ければ変態でも好きになってくれますか？, Would you even fall in love with a pervert as long as it's a cutie?
9. Kanojo ga Flag wo Oraretara
Hatate Souta is a high school boy, who has an ability to visualize "flags" for future events such as "death flag," "friendship flag," and "romance flag." Despite the flag-viewing ability, he avoids making friends with others due to a trauma he experienced in a ship submergence accident. Twelve beautiful girls get interested in his strange way of living, and they begin to live with him at the school dorm.
If Her Flag Breaks has finished airing and it has 13 Episodes. It is also Known as: 彼女がフラグをおられたら, Gaworare
8. Mamahaha no Tsurego ga Moto Kano datta
The story centers on Mizuto and Yume, a former couple who enjoyed a relationship in junior high school, but became more and more irritated at each other, and used their graduation as an opportunity to break up. But on the day before entering high school, the two reunite in the most unlikely way: with their parents announcing a marriage, with Mizuto and Yume now becoming step-siblings. Wanting to prioritize their parents' relationship, the two promise to not fool around with each other, establishing a rule where "the first one to get aroused" loses.
My Stepmom's Daughter is my Ex has finished airing and it has 12 Episodes. It is also Known as: 継母の連れ子が元カノだった, Motokano, Tsurekano
7. Kono Naka ni Hitori, Imouto ga Iru!
Is insanity hereditary? Shougo Mikadono's beginning to think so, because the terms of his late father's will seem crazy and following them may drive Shougo bonkers as well. Oh, it sounds simple at first: before Shougo can claim his VERY large inheritance, he just has to start attending a certain new school and find a nice girl to marry. It's a little unromantic, but perfectly do-able, right? After all, all the girls seem quite friendly, so all Shougo has to do is find one he has something in common with. EXCEPT, and here's the kicker, it turns out that Shougo has WAY too much in common with one of them, because she's actually his long lost sister! And he has no idea which one she is! Will Shougo meet and court his Miss Right without committing something very morally wrong? Can he find his future bride without slipping into the wrong set of genes? And if his little sister does reveal herself, just how much will be revealed and under what circumstances?
NAKAIMO - My Little Sister Is Among Them! has finished airing and it has 12 Episodes. It is also Known as: この中に1人、妹がいる！, NakaImo, One of Them is My Younger Sister!, Who is Imouto?
6. Saikin, Imouto no Yousu ga Chotto Okashiinda ga.
Saikin, Imouto no Yousu ga Chotto Okashiinda ga. follows a family just starting to rebuild. When they marry, Mr. and Mrs. Kanzaki bring a teenage son and daughter along for the ride. But high school freshman Mitsuki Kanzaki is less than thrilled. Stinging from a history of absent and abusive father figures, she is slow to accept her stepfather and stepbrother.
But after an accident lands Mitsuki in the hospital, she finds herself possessed by the ghost of Hiyori Kotobuki, a girl her age who was deeply in love with Mitsuki's stepbrother Yuuya. Hiyori cannot pass on to her final reward because of her unrequited love for Yuuya, meaning she's got to consummate it... in Mitsuki's body?!
Now, Mitsuki's life depends on getting Hiyori to Heaven. But will she get used to sharing herself with a pushy, amorous ghost? Can she overcome her distrust of her new family? Can she bring herself to fulfill Hiyori's feelings for Yuuya? And might she be hiding some feelings of her own?
Recently, my sister is unusual. has finished airing and it has 12 Episodes. It is also Known as: 最近、妹のようすがちょっとおかしいんだが。, Recently, My Little Sister is Unusual, ImoCho, ImoCyo
5. Oniichan no Koto nanka Zenzen Suki ja Nai n da kara ne!!
Junior High student Nao's brother complex is so strong, it's almost at the point of incest. She's determined to make her brother, High School student Shuusuke, see her as a woman. So determined, that she goes as far as going into his room to throw away all his non-incest related porn. But as she's looking for his porno stash, she finds a photo album... and she's not in any of his childhood pictures. What is going on?
Oniichan no Koto nanka Zenzen Suki ja Nai n da kara ne!! has finished airing and it has 12 Episodes. It is also Known as: お兄ちゃんのことなんかぜんぜん好きじゃないんだからねっ!!, Oniichan no Koto nanka Zenzen Suki Janain Dakara ne!!, Onisuki, Because I Don't Like My Big Brother At All!!
4. Kiss x Sis (TV)
After Keita Suminoe's mother passed away, his father promptly remarried, introducing two step-sisters into Keita's life: twins Ako and Riko. But since their fateful first encounter, a surge of incestuous love for their younger brother overcame the girls, beginning a lifelong feud for his heart.
Now at the end of his middle school career, Keita studies fervently to be able to attend Ako and Riko's high school. While doing so however, he must resolve his conflicting feelings for his siblings and either reject or succumb to his sisters' intimate advances. Fortunately—or perhaps unfortunately for Keita—his sisters aren't the only women lusting after him, and there's no telling when the allure of temptation will get the better of the boy as well.
Kiss x Sis (TV) has finished airing and it has 12 Episodes. It is also Known as: キスシス, Kiss x Sis (2010), Kissxsis
3. Sakurasou no Pet na Kanojo
When abandoned kittens and his good conscience force second year Sorata Kanda to move into Suimei High School’s infamous Sakura Hall, the satellite dorm and its eccentric, misfit residents turn his life upside down. The decidedly average Sorata finds it difficult to fit in with the bizarre collection of dorm residents like Misaki, an energetic animator; Jin, a playwright playboy; Ryuunosuke, a reclusive programmer; and Chihiro, the dorm manager, art teacher, and party girl.
Sorata's friend Nanami, a second year student and aspiring voice actress, pushes him to find new owners for the many cats so that he can quickly move back into the regular dorms. However, his desire to escape Sakura Hall wavers when the pet-like and infantile second year Mashiro Shiina, a world-class artistic savant looking to become a mangaka, transfers in during the spring trimester and quickly latches onto him.
Supported by each other's quirks, Sorata and Mashiro come out of their shells and trigger change in the lives of those around them. Based on the light novel series of the same name, Sakurasou no Pet na Kanojo explores the fine threads connecting talent, hard work, romance, and friendship with its ensemble cast.
The Pet Girl of Sakurasou has finished airing and it has 24 Episodes. It is also Known as: さくら荘のペットな彼女, Sakura-sou no Pet na Kanojo
2. Oreshura
It is often said that events of the past shape what you become in the future. For Eita Kidou, a studious, hard-working student aspiring to earn a scholarship so that he can become a doctor, this is an undeniable truth after being abandoned by his love-addled parents. This event left him jaded to the notion of romance, seeing it as only a distraction that gets in the way of studying.
Unfortunately for Eita, his efforts hit a snag when he receives a confession of love from Masuzu Natsukawa, a transfer student with platinum hair and blue eyes. Eita sees through the confession, causing Masuzu to admit that she only did so because having a boyfriend would stop people from asking her out daily. She finds love to be just as much of a hindrance as he does, so by pretending to date, they can stave off advances from everyone else.
Eita refuses on the grounds that his classmates will be jealous, but Masuzu blackmails him by revealing that she has his journal and will post it online for everyone to see if he betrays her. Thus begins Ore no Kanojo to Osananajimi ga Shuraba Sugiru, a story that follows Eita coping with his new "relationship" and the complications that arise from it.
Oreshura has finished airing and it has 13 Episodes. It is also Known as: Ore no Kanojo to Osananajimi ga Shuraba Sugiru, 俺の彼女と幼なじみが修羅場すぎる, Ore no Kanojo to Osananajimi ga Shuraba Sugiru
1. Oreimo
Kirino Kousaka embodies the ideal student with equally entrancing looks. Her grades are near perfect, and to cover her personal expenses, she works as a professional model alongside her best friend Ayase Aragaki, who abhors liars and all things otaku. But what Ayase doesn't know is that Kirino harbors a deep, entrenched secret that will soon be brought to light.
At home one day, Kyousuke, Kirino's perfectly average brother, stumbles upon an erotic game that belongs to none other than his seemingly flawless little sister. With her reputation at stake, Kirino places a gag order on her sibling while simultaneously introducing him to the world of eroge and anime. Through Kirino, Kyousuke encounters the gothic lolita Ruri Gokou and the bespectacled otaku Saori Makishima, thus jump-starting an entirely new lifestyle. But as he becomes more and more involved in his little sister's secret life, it becomes that much harder to keep under wraps.
Oreimo has finished airing and it has 12 Episodes. It is also Known as: Ore no Imouto ga Konnani Kawaii Wake ga Nai, 俺の妹がこんなに可愛いわけがない, My Little Sister Can't Be This Cute
