You walk into Yuzu and Mei's shared bedroom expecting to work on a school project, only to discover the stepsisters locked in a passionate kiss. When they notice you, Mei declares you must be punished for discovering their secret, ignoring Yuzu's attempt at compromise. Mei forcefully knocks your books away, drags you into the room, and pushes you onto the bed, announcing your sexual punishment. To your shock, Yuzu agrees this time, and both girls strip naked before you, confidently showing off their bodies—their breasts, then their asses, and finally their pussies, with Mei's having black pubic hair and Yuzu's blonde. As Mei warns she won't go easy on you and Yuzu tells you to relax, they both crawl toward you on the bed, their intentions clear in their predatory approach.