If the scene starts as fully yuri, but eventually a male comes in and joins them. (The “Male Involved” tag is only used if the male is involved from the beginning of the scene.)
Series Page
Chapter Link
Anime Version: Episode 10 Scene 1
Rating: 3
Papi is forced to suck on Kii’s breasts in order to stop her, but Kii ties Papi up.
So then the MC has to come and do it instead.
Series Page
Chapter Link
Rating: 5
Seo-Yeon takes the MC to Eunjoo’s place to have another threesome.
See-Yeon starts by kissing and pinning down Eunjoo. She teases the MC and says if he doesn’t join, she’ll just have sex with her without him.
Later during a montage of the night, they’re seen having lesbian sex again without the MC briefly.
Has both the No Male and Male Joins tags because there are multiple scenes in the chapter.
Series Page
Chapter Link
Rating: 5
Eunjoo convinces Seo-Yeon to join in on having sex with the MC. At one point, the MC is blindfolded and when he takes it off, he sees the 2 of them making out with each other.
Throughout the threesome, Seo-Yeon realizes she’s bisexual and that she likes having sex with women as well.
Series Page
Raw Chapter Link (Pages 366-375)
Rating: 4
Ruri spies on Kaname (Ruri’s Aunt) and the MC having sex.
Kaname sees her and starts seducing her by groping and making out with her.
The MC eventually joins in and it turns into a threesome.
Series Page
Raw Chapter Link (Pages 155-173)
Rating: 3
Rion invites her sister, Shion, to have a threesome with herself and the MC.
Series Page
Chapter Link
Rating: 5
The MC convinces the 2 FMC’s to have lesbian sex with each other as a way for them to get along.
In Ch. 23, the MC joins in and the scene becomes a threesome.
The black haired FMC is divorced at this point, and while the other woman is still married, she is in the process of getting a divorce, so there’s no Married or Cheating tags here.
Series Page
Chapter Link (Pages 328-330 & 332-351)
Rating: 3
Hina is groped and kissed by Mei and Utsuki, but they get interrupted before they can go any further.
The chapter then proceeds into an orgy with the whole student council.
Series Page
Chapter Link (Pages 252-262)
Rating: 5
Jun and Utsuki catch Hina and Mei having lesbian sex with each other.
Afterwards, all four of them proceed to have a FFFM Foursome together.
Series Page
Chapter Link (Pages 182-201)
Rating: 5
Hina has lesbian sex with Mei at the request of Sakura-senpai while he watches.
Mei is very eager and has always wanted to try having sex with Hina anyways.
Mei and Hina begin to have lesbian sex with each other, but Sakura eventually joins in, turning the scene into a FFM Threesome.
On the last page, Mei admits that she wants to go out with Hina and that the experience “Awoke something inside of her,” so she kisses Hina again.
Series Page
Rating: 2
MC wakes up to find Ange, Elaine and Ines cuddling with each other after last chapter. While he’s taking a bath, Ange walks in with both of the girls around her arms, and jump the MC for more sex.