Key Ring Lock

Sinopsis

Yui, a permanent part-timer, encounters Toshiki collapsed on the street. Drawn to Toshiki's unusual charm, Yui assists him home. Despite feeling manipulated, Yui accepts Toshiki's advances. The next morning, Yui awakens to find himself locked inside, with Toshiki cheerfully admitting that confinement is his hobby. The story explores the delicate balance between normalcy and abnormality in their developing relationship.