Self-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.
Self-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.
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Onii-chan wa Oshimai! Episode 012 [Uncensored]
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Onii-chan wa Oshimai! Episode 011 [Uncensored]
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Onii-chan wa Oshimai! Episode 010 [Uncensored]
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Onii-chan wa Oshimai! Episode 009 [Uncensored]
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Onii-chan wa Oshimai! Episode 008 [Uncensored]
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Onii-chan wa Oshimai! Episode 007 [Uncensored]
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Onii-chan wa Oshimai! Episode 006 [Uncensored]
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Onii-chan wa Oshimai! Episode 005 [Uncensored]
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Onii-chan wa Oshimai! Episode 004 [Uncensored]
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Onii-chan wa Oshimai! Episode 003 [Uncensored]
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Onii-chan wa Oshimai! Episode 002 [Uncensored]
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Onii-chan wa Oshimai! Episode 001 [Uncensored]
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Onii-chan wa Oshimai! _Trailer
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Onii-chan wa Oshimai! _012
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Onii-chan wa Oshimai! _011
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Onii-chan wa Oshimai! _010
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Onii-chan wa Oshimai! _009
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Onii-chan wa Oshimai! _008
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Onii-chan wa Oshimai! _007
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Onii-chan wa Oshimai! _006
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Onii-chan wa Oshimai! _005
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Episode 012 [Uncensored]
Released on 24 Mar, 2023 -
Episode 011 [Uncensored]
Released on 17 Mar, 2023 -
Episode 010 [Uncensored]
Released on 10 Mar, 2023 -
Episode 009 [Uncensored]
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Episode 008 [Uncensored]
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Episode 007 [Uncensored]
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Episode 006 [Uncensored]
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Episode 005 [Uncensored]
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Episode 004 [Uncensored]
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Episode 003 [Uncensored]
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Episode 002 [Uncensored]
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Episode 001 [Uncensored]
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_Trailer
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_012
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_011
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_010
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_009
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_008
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_007
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_006
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_005
Released on 02 Feb, 2023 -
_004
Released on 26 Jan, 2023 -
_003
Released on 19 Jan, 2023 -
_002
Released on 12 Jan, 2023 -
_001
Released on 27 Dec, 2022
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