Based on the original work by Surumenium, this masterpiece of unrequited love and cuckolding has been adapted into a live-action film! Recently, Tsubasa Tsubasa, who I've been interested in, invites me to her room on the night of the school trip. When the four of us, including my male friend Kudo and Ayaka Sakura, who shares a room with Hayami, start playing King's Game, things gradually get out of hand... they start stripping each other of their clothes, deep kissing, and then Kudo has sex with Hayami! I can have sex with Sakura, but... even if the girl I like is being held in front of me, I have no right to stop her because I'm just in unrequited love. A bittersweet story of youthful heartbreak.