Scene is very long in length. (Most of the chapter or multiple chapters.)
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Rating: 4
At the start of the chapter, the MC has a nightmare about Kaede being raped and seduced by Ryouko, Yoshida and Kobinita while he’s buried neck deep in sand.
Later Kaede is actually seduced by Ryouko while she’s possessed by a ghost, but they’re stopped by the MC.
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Rating: 4
Yoshida meets Ryouko and gets a massage from her.
Ryouko goes from giving her a massage to basically having lesbian sex with her.
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Rating: 4
Kaede gets a massage from Ryouko that turns very sexual. The scene ends with Ryouko hugging Kaede from behind and whispering in her ear that she’s beautiful and can come over for a free massage whenever she wants.
Ryouko is a married woman and she’s very lonely from her husband being away from home all of the time. She’s also openly bisexual and tries to have sex with Kaede and the other girls all through out the series.
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Rating: 5
Ms. Kang and Yujin stay at a motel together after staying out drinking. After Ms. Kang hears Yujin’s story, they start having sex.
When Ms. Kang wakes up, it briefly shows the sex scene again, implying they had sex all night long.
On the way to school, Ms Kang holds onto Yujin’s arm like they’re a couple.
This has the “Cheating” tag because Ms. Kang does this behind the MC’s back. He does find out at the end of Ch. 53, but he didn’t seem to mind.
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Rating: 4
MC has a threesome with Ms. Kang and Yujin. Ms. Kang makes out with Yujin during it and they tease each other through out.
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Rating: 4
Ms. Kang and Yujin get into a fight, but then Yujin just starts taking advantage of Ms. Kang and has sex with her.
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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: 5
Ai traps Haiji in a locker so that he’s forced to watch her and the rest of the girls have lesbian sex with Syurina.
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Rating: 5
Ai finds Syurina masturbating to the MC’s clothes after he rejected her. Ai wants to help and cheer her up, so she starts seducing and fingering her.
Ai then takes her to Momo and Tohka, asking them to help teach Syurina “The pleasures of being a woman.”
We see it in Ch. 8, but it’s implied after this chapter that they have lesbian group sex in the locker room every day.
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Rating: 5
Haiji’s sister, Ai, ties him up to the bed and teases him. Momo shows up and thinks the MC is cheating on her, so she starts crying. In order to calm her down, Ai starts making out with her and then proceeds to have sex with her on top of the MC, refusing to let him join in.
The “Cheating” tag is here because in Momo’s mind, her and Haiji are dating, even though Haiji never agreed to it. And I put the “Male Joins” tag here because they have sex on top of him.