Siwoo, Yujeong & Yoon Jian enter the dungeon together. In order to clear the dungeon quest, Siwoo needs to give up a certain amount of energy (orgasm) and is made to pick between two rooms to choose a partner. MC ends up with Yoon Jian, and she doesn't hesitate to help with the mission. Yujeong starts masturbating to the view of the two fucking because there's a crystal ball in her room which lets her see what's happening in Jian's room.
Seung-Jo Cha tried to assault her first but So-Hee herself allows him to fuck her.
After coming to his lodging he fucks Yeong-Suk to gain back his, confidence!
Nam-Wook takes Ga-yung with him to an empty classroom (it's not empty) and fucks her really close to the locker where the Kyung-Ho & Seung-Ah were hiding.