5 : Mahiro Discovers Adventure and Social Gatherings
In a rare turn of events, Mihari wakes up one morning to find Mahiro has gotten up before her. Since the corner store was going to start selling clear files from his favorite anime that day, he had woken up early to go pick them up before they sold out. Mihari is overwhelmed with joy to see Mahiro going outside of his own accord. On his way back from buying the clear files, Mahiro stops by an arcade for the first time since middle school. He`s enjoying a rhythm game when suddenly he senses a man standing watching him from behind. A few minutes go by when he feels a tap on the shoulder...
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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 ep6 : Mahiro Goes Back to Middle SchoolOniichan wa Oshimai!4771views •- 23 min per ep7 : Mahiro's Role-Playing GameOniichan wa Oshimai!4878views •
- 23 min per ep8 : Mahiro's First Girls SleepoverOniichan wa Oshimai!4194views •
- 23 min per ep9 : Mahiro Rings In the New YearOniichan wa Oshimai!4241views •
- 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!3540views •
