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Rating: 1
Haena and Chaewon press their breasts together while walking in on the MC have sex with Mijoo.
This continues into a foursome in the next chapter.
Outsider: The Invisible Man – Chapter 41
Tag: Cheating
The scene features at least 1 girl cheating on her significant other with another girl.
The significant other can be their boyfriend, girlfriend, husband, Etc., as long as she’s being unfaithful to them.
This tag can be used in combination with any other relevant tags like Married or Rape.
A Wise Driver’s Life – Chapter 42
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Rating: 3
Hyejin briefly fingers Yuri before the MC walks in on them.
Waka Mousama wa Shinobu Nai – Chapter 4
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Rating: 2
The FMC is briefly fingered by another girl.
Bride Training – Chapter 18
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Rating: 2
Heejoo gets a massage from 2 other girls where they briefly begin to grope her body.
After the massage ends, the girls leave and the MC has sex with her, so I tagged this as Male Joins.
Rental Girls – Chapter 58
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Rating: 3
After Bomi catches her husband having sex with Sung-Ryeon, Seohye shows up and seduces her into joining them as well.
Echika wa o Gishi-san – Chapter 3
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Rating: 4
Kana meets the MC’s ex, Meiko, and seduces her while the MC is away from home.
It starts with a kiss, but then the scene cuts to them nude in bed, with Meiko’s inner dialogue saying she only went along with it because she hasn’t had sex in a long time.
Based off the clock and the dialogue, it’s implied they only did a little bit off-screen, but Meiko still apologizes to the MC when he walks in.
Housewife Erika – Vol. 4 Chapter 9
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Rating: 3
The start of the chapter shows Erika having sex with Samantha again as payback for having sex with her husband.
Later, Erika’s husband comes home and joins them.
Housewife Erika – Vol. 3 Chapter 9
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Rating: 2
Erika goes to visit her Husband at the hospital and runs in to the Nurse taking care of him. Erika and the Nurse briefly have lesbian sex with each other, but then the Husband joins in as well.
Secret Class – Chapter 177
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Rating: 3
The MC walks in on Mi-Ah and Ju-Ri stripping and feeling up So-Hyun before joining to have sex with them.
I put the “Cheating” tag here, just because the MC and the girls are basically cucking So-Hyun from Go-Bong. But So-Hyun isn’t actually dating Go-Bong.
Love to Like EZR – Chapter 10
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Rating: 4
At the end of the chapter, Tako finds Rin and Rosa in the middle of having lesbian sex with each other.