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Rating: 3
The MC has a threesome with Sieun and Sihyun.
How to Conquer Women With Hypnosis – Chapters 30-33
Tag: Full Nude
Scene features at least 1 girl fully nude.
Tail Chaser – Chapter 11
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Rating: 5
Mars and Enma have lesbian sex with each other while the MC and his friend watch.
Eventually they also join in for a foursome.
Amoral Island – Chapter 2
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Rating: 5
After finding out that the MC had sex with Ui and Uka, they both then invite Mikuru to try it out as well and have lesbian sex together.
Ui and Uka admit to having tried out having sex with each other before.
Saki hesitates to agree, but Mikuru says that she’s interested and says she’ll do it.
Ui, Uka and Mikuru proceed to have a lesbian threesome with each other while Saki watches and masturbates to them, seemingly eager to join as well.
I’m unsure if this will continue into chapter 3, but given Saki’s reaction, it seems likely that it will and that she’ll join.
A Sweet Part Time Job – Chapter 45
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Rating: 3
In the final chapter, the MC has a foursome with Yoo-Ah, So-Jin and Mi-Ah.
Mother-in-Law Bends To My Will – Chapters 24-25
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Rating: 4
Continued from the previous scene, Soohee keeps having lesbian sex with Sooyeon.
Near the end of Ch. 24, the MC joins them for a threesome.
Erotic Manga Café Girls – Chapter 56
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Rating: 3
The MC has a foursome with So-Hee, So-Yun and Han-Na.
Mother-in-Law Bends To My Will – Chapters 19-20
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Rating: 3
At the end of the chapter, the MC takes Sooyeon to serve a new woman, who is later revealed to be her sister, Soohee.
Eventually the MC joins in as well for a threesome.
Erotic Manga Café Girls – Chapters 58-59
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Rating: 3
The MC has a threesome with So-Hee and So-Yun.
Kaifuku Jutsushi no Yarinaoshi – Chapters 30.1-30.2
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Rating: 3
The MC has Ellen tied up and raped by both of them as part of his revenge.
Erotic Manga Café Girls – Chapters 41-42
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Rating: 2
The MC has a threesome with So-Hee and So-Yun.