Key Ring Lock

Yui, a part-time worker, finds a tired man on the street and helps him home. Toshiki, the man, is oddly appealing and takes advantage of Yui’s kindness. The next day, Yui wakes up to find the door locked and cannot leave. Toshiki tells him confinement is his hobby. As Yui becomes trapped, the line between normal and unusual blurs. The two develop a complex relationship in this confined setting.