Scene has a male involved in some way from the beginning. (Whether it’s for a FFM Threesome or some other means.)
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Rating: 4
The MC has multiple threesomes with Toshima and Melissa throughout the chapter.
Afterwards, the MC is sent to jail, and while he’s gone, Toshima and Melissa are shown continuing their relationship off-screen.
Because of the ending, I’m tagging this as both Male Involved and No Male.
Also the MC gets out of jail and shows up at the very end.
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Rating: 4
While the MC is having sex with Ao, Ai shows up with a strap-on and joins in.
After they finish, Ai then has sex with Shiroha, so the MC goes to them next.
While the MC and Shiroha are having sex, Ao pushes Ai down and they start having lesbian sex with each other.
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Rating: 4
While the photographer is having sex with the MC, she imagines having sex with the FMC.
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Rating: 5
The chapter starts with a flashforward of the MC having a threesome with Rinko and Hinata.
It then cuts to Rinko having sex with Hinata while the MC is forced to watch.
Next is what happened 5 hours earlier, where Rinko sent the MC a DVD recording of her having sex with Hinata in a public library.
After they catch him watching the DVD, it cuts back to the threesome from the start of the chapter.
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Rating: 3
The start of Part 2 has the MC having a foursome with Yukiko and 2 other girls.
Later, after he finishes, he watches the 3 of them have sex with each other.
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Rating: 5
Start of chapter shows Ai, Momo and Tohka in bed nude together, implying they had sex while Haiji went off with Syurina.
Later, all of the girls join them and have an orgy together.
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Rating: 3
Erika participates in a FFM Threesome with Rion and the MC.
Later, Rion walks Erika home, and Erika kisses Rion, saying that if she ever wants a lesbian sex friend, to just call her.
This has both the Male Involved and No Male tags because there are 2 different scenes in the same chapter.