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Nao Takanashi has long been trying to tempt her brother, Shuusuke, into entering an ‘immoral’ relationship with her, and Shuusuke is barely being able to resist.

Nao goes to great lengths for Shuusuke to think of her perversely by doing things such as letting him purposely look underneath her skirt, but then she always gets him into trouble afterwards. In the end it looks like Shuusuke is the pervy one.

One day, while Nao searches through Shuusuke’s room for his collection of ‘ecchi’ magazines, she finds a hidden family photo album and is surprised to find out that there are no childhood pictures of her in it. After Shuusuke is scolded, Nao confronts her parents, Shuuji and Nanaka, about the album.

They then tell her the truth: 10 years prior to the story, a car accident killed Nao’s real parents and left Nao with memory loss, so Shuusuke insisted that Shuuji and Nanaka adopt her into their family where he vowed to care and look after her as his sister.

Nao, curiously enough, is more shocked by the fact she and Shuusuke are not actually blood related. At that instance, Nao realizes that a possible intimate relationship with him would be acceptable.

Nao then requests Shuuji and Nanaka to keep the fact she learned the truth from Shuusuke so that they can retain their sibling status. In other words, Nao will play with Shuusuke and make him roll on his knees over and over.

Main Characters

Nao Takanashi is the adopted daughter of the Takanashi family and secretly loves her brother Shuusuke, going as far as to know everything about him to an obsessive degree. She goes to various lengths to make sure Shuusuke becomes attracted to her, such as throwing out his non-incest porn, and becomes particularly annoyed with other girls aiming for his affections.

Shuusuke Takanashi is the son of the Takanashi family. He is rather perverted, often keeping large abundances of porn magazines and always looking for panty shot opportunities. Recently he continues to use term which “not betraying Nao” implying he loves her, or at least wishes to have her see him as a good older brother. He does admit to feeling some interest in Nao, not brother-sister interest, but girlfriend- boyfriend interest.

Iroha Tsuchiura is Shuusuke’s childhood friend before Nao’s adoption. Having played Doctor with him a lot as a child, she claims that she is Shuusuke’s lover and constantly makes advances on him. She is also something of a stalker, watching him in his house through a telescope and using night vision goggles to stalk him.

Mayuka Kondou is Shuusuke’s classmate and class president, with a strong interest in Boy’s Love magazines. When one of her magazines is torn up by Shuusuke during a mix up with one of his, she makes Shuusuke her ‘pet’, having him purchase more explicit BL magazines and review them for an unbiased opinion, though she interprets this as having a shared interest. More at: Wiki

Oniichan no Koto Nanka Zenzen Suki Janain Dakara ne—!! (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!!) is a Japanese seinen manga series written and illustrated by Kouichi Kusano and serialized by Futabasha’s Web Comic High! service.

It has been adapted by Zexcs into an anime series and start airing in Japan on January 9, 2011.

Title: Oniichan no Koto Nanka Zenzen Suki Janain Dakara ne—!! (2011)
Kanji: 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!! (2011)
Opening Theme: “Taste of Paradise” by Eri Kitamura
Ending Theme: “Ari Ari Mirai☆” by Eri Kitamura, Marina Inoue, and Kazusa Aranami

Oniichan no Koto Nanka Zenzen Suki Janain Dakara ne—!! OP ~ “Taste of Paradise”

Oniichan no Koto Nanka Zenzen Suki Janain Dakara ne—!! PV

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