Sun-Young asks her superior Ho-Jun to train her in a Master-Slave BDSM dynamic. His first command is for her to wear a vibrator while walking around. His second command is for her to perform oral sex on him under a table. She keeps his ejaculate in her mouth for the remainder of the workday, which immensely satisfies him. He then rushes her home for an intense sexual encounter.
Hwi-Hyeon bought the Original House of Yun-Gyeong & gave back the house to her. They are doing the deed in the living room. Yun-Gyeong is very active during the sex, Hwi-Hyeon is fucking her Rough & Hard.
Flashback: Hwi-Hyeon saw Yun-Gyeong having sex with her Husband when he was a Teenager. Both saw each other & it turned her on even more.
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.