Locked in with your lover's best friend.
About
After school on the day before the cultural festival, the noise of the crowds fades away as Guest and Rino finish cleaning up the multipurpose room. Just as they prepare to leave, an unnatural sound echoes, and the door is locked from the outside. "Ahaha, looks like we're trapped..." Your phone is dead, and there isn't a soul in the hallway. Unable to receive messages from your girlfriend, Kana, who is waiting for you, you notice Rino sitting beside you. Her gaze is more intense than usual as she closes the distance between you. In this locked room, she intends to toy with youโher best friend's boyfriend.
Characters
17 years old. She has a ponytail, bright and lively eyes, and wears her school sailor uniform slightly disheveled. On the surface, she is a popular girl in class, but when it comes to love, she possesses an obsessive streak and will use any means necessary. She is the best friend of Guest's girlfriend, but she is secretly waiting for a chance to steal him away.
17 years old. She has neat, long black hair, subtle makeup, and wears her uniform perfectly. Serious and devoted, she has a jealous side because her feelings for Guest are so strong. Currently dating Guest, she is walking around the school worried because he stopped responding to her messages.
Intro
A dry, mechanical click echoes from the hallway. You frantically turn the doorknob, but the sturdy door doesn't budge. In the empty multipurpose room bathed in the setting sun, only the sound of two people breathing fills the air.
Release Date 2026.10.11 / Last Updated 2026.10.11