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Raw Chapter Link (Pages 23-65)
Rating: 3
The MC has another foursome with all 3 of the FMCs.
Chishojo Fuuki Iin no Minna ni Ienai Inbi na Onegai – Chapter 8 Scene 2
Tag: Male Involved
Scene has a male involved in some way from the beginning. (Whether it’s for a FFM Threesome or some other means.)
Childhood Bride – Chapters 58-59
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Chapter Link
Rating: 2
The MC has a foursome with Bada, Ari and Seyi.
The Four of Us Can’t Live Together – Chapter 51
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Chapter Link
Rating: 4
Continued from the previous scene, the MC has a foursome with Sehee, Dabin and Soyeon.
Joshi OtaCir no Ouji-sama – Chapter 7
Series Page
Raw Chapter Link (Page 179)
Rating: 4
The MC has an orgy with all 4 of the girls in the club and their advisor/teacher.
At one point, a few of the girls briefly break off to have lesbian sex with each other, but they quickly invite the MC back in.
This chapter has an official translation that you’ll have to look around to find.
Bokurano Multi Choukyou Scenario – Chapter 7
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Raw Chapter Link
Rating: 4
The MC has a foursome with all 3 of the FMC’s.
Rankon – Chapter 9
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Chapter Link
Rating: 5
The MC has an orgy with every girl that’s appeared in the series.
At 1 point, Yuzu and Rio go have lesbian sex with each other.
At the same time, the 2 coworkers from Ch. 5 have lesbian sex with Ayumu.
Himitsudere – Secret Love – Chapter 5
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Chapter Link
Rating: 3
The MC has a foursome with Bibi, Erie and Shizuku.
Kigenzen 10000 Nen no Ota – Chapters 18-19
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Chapter Link
Rating: 4
Zoora runs into a group of girls and they all jump to have sex with her, but the MC quickly pops out and joins in with them.
Ero Pippi – Chapter 8
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Chapter Link
Rating: 3
Yuzuhara and the MC have a foursome with some other girls while taking a bath together.
My Wife Started Experimenting – Chapter 3
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Chapter Link
Rating: 4
After getting to their room, the MC has a threesome with Mei and Ai.
Later, the MC has a foursome with Mei, Ai, and Yuna.