Scene has a male involved in some way from the beginning. (Whether it’s for a FFM Threesome or some other means.)
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Rating: 3
The cover on the Korean version of Toptoon shows Na-Yeon and Yeon-Ah having sex with each other.
This scene seems to be depicted in the threesome from Ch. 97.
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Rating: 4
A continuation of the threesome with Na-Yeon and Yeon-Ah from Ch. 66.
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Rating: 5
The MC has a threesome with Soo-Yeon and Yeon-Ah.
Chapter 52 is the reveal about Soo-Yeon’s sex technique for Yeon-Ah.
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Rating: 1
Sae-Yeon tells the MC that she’s going to try to have sex with Yeon-Ah.