At least one of the girls involved in the scene is a teacher at a school/university/college.
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Rating: 4
The teacher FMC has one of her old students show up and confess their love for her.
The student who was thought to be a boy, reveals herself to be a girl, so the teacher has sex with both her and the MC to test who can pleasure her more.
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Rating: 5
Mai hypnotizes Hikaru into having sex with her while the MC watches.
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Rating: 5
Mai has sex with Yuuna and another girl while the MC is forced to watch.
At the end of Ch. 106, the MC breaks free and in Ch. 107, he joins in.
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Rating: 2
The new teacher Mai, sees Hikaru and immediately falls in love with her. She flirts with her in class and gets her to try gymnastics.
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Rating: 4
So-Ra joins in on having sex with Joo-Hee and another guy.
The guy leaves pretty much the moment So-Ra joins in and it’s just lesbian sex for the rest of the scene. So I’ll tag this as “No Male,” but he is only there at the start.
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Rating: 1
So-Ra tries to have sex with Seon-Gae again.
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Rating: 1
Seon-Gae talks to Yuna about what she saw in Ch. 13-14.
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Rating: 3
Yuna sees Seon-Gae getting raped by So-Ra.
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Rating: 4
The MC has another threesome with Hyun-Mi and Su-Hyun.
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Rating: 2
Some of the girls are transformed and attempt to have sex with the MC’s genderbent body.