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Rating: 3
In the final chapter, Dae-Un gropes every girl in the group before joining the MC for an orgy.
Sex Study Group – Chapter 110
Tag: Male Joins
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.)
Heart Maker – Chapter 9
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Chapter Link
Rating: 3
Mayumi and Akiko briefly have lesbian sex again, but they’re quickly joined in by a bunch of men.