1 : Mahiro's Confusing New Body
We follow Mahiro Oyama, an unemployed good-for-nothing shut-in, who not only hasn`t left the house in two years, but is also exceedingly addicted to gross video games. One afternoon, he wakes up and notices that his body feels a little off. Finding that strange, he goes to reach for his tablet, but what does he see in his reflection, but an adorable young lady. I wonder what lies in store for the "former" big brother, Mahiro as he`s thrust headfirst into his new life as a girl.
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DiscordSelf-professed "home security guard" Mahiro Oyama has not left his home in years, secluding himself in his room playing erotic visual novels. This depraved lifestyle causes his prodigious sister, Mihari, to worry about his well-being. In hopes of solving this problem, she devises a plan to rehabilitate him back to normalcy.
The first part of Mihari's plan is to concoct a medicine that changes her brother's biological constitution into a bona fide female, much to Mahiro's vehement dismay. Stuck in this predicament, Mahiro has no choice but to live out his life as a cute girl until the effect wears off—if it ever does.
[Written by MAL Rewrite]
23 min per ep2 : Mahiro's Time of the MonthOniichan wa Oshimai!7198views •- 23 min per ep3 : Mahiro's Close EncounterOniichan wa Oshimai!5944views •
- 23 min per ep4 : Mahiro's New FriendOniichan wa Oshimai!5645views •
- 23 min per ep5 : Mahiro Discovers Adventure and Social GatheringsOniichan wa Oshimai!4983views •
- 23 min per ep6 : Mahiro Goes Back to Middle SchoolOniichan wa Oshimai!4772views •
- 23 min per ep7 : Mahiro's Role-Playing GameOniichan wa Oshimai!4880views •
- 23 min per ep8 : Mahiro's First Girls SleepoverOniichan wa Oshimai!4195views •
- 23 min per ep9 : Mahiro Rings In the New YearOniichan wa Oshimai!4242views •
- 23 min per ep10 : Mahiro Ponders Boobs and IdentityOniichan wa Oshimai!3509views •
- 23 min per ep11 : Mahiro Pretties UpOniichan wa Oshimai!3502views •
- 23 min per ep12 : Mahiro's Future as a SisterOniichan wa Oshimai!3543views •
