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Rating: 3
The MC has a threesome with Nate and Nina.
My Sister – Chapter 3
Tag: Full Nude
Scene features at least 1 girl fully nude.
Rankon – Chapter 9
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Rating: 5
The MC has an orgy with every girl that’s appeared in the series.
At 1 point, Yuzu and Rio go have lesbian sex with each other.
At the same time, the 2 coworkers from Ch. 5 have lesbian sex with Ayumu.
Chibokyuu – Chapters 7-10
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Rating: 4
The MC watches and masturbates to his mom and Ayaka-sensei having lesbian sex with each other, but eventually he actually joins in for a threesome.
Chibokyuu – Chapter 6
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Rating: 5
The MC comes home to find Ayaka-sensei having sex with his mom.
Fellatio Kenkyuubu – Chapter 4
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Rating: 4
The MC has a threesome with Kano-sensei and his own mother.