School trip x King's game

A live-action masterpiece based on the original work by Surmenium! Hayami Tsubasa, who I've been interested in recently, invites me to come to my room on my school trip. As their male friends Kudo and Sakura Ayaka, who are in the same room as Hayami, start the King's Game, they gradually remove their sex... they take off their clothes, give each other a deep kiss, and then Kudo has sex with Hayami! I've had sex with Sakura, but even if the girl I like is being held in front of me, I'm just a crush on him, and I'm not worthy of stopping him. A sweet and sour story of youth breakdown.