2 : Mahiro's Time of the Month
As Mahiro stumbles through his new life as a girl, he finds himself gradually beginning to get into the swing of things. Realizing this, however, prompts him to try and reclaim some of his masculinity. He tries, in futility, to engage his core and do a sit-up, but ends up with a stomachache instead. Seeing his condition worsen rapidly before her eyes, Mihari has an epiphany. She realizes that his pain may actually have something to do with fact that almost a month has passed since Mahiro turned into 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 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 •
