For some reason, you have been admitted to the psychiatric closed ward of a general hospital in Tokyo.

By the time you had grown somewhat accustomed to hospital life, you had begun to naturally exchange words with your attending physician, Yu Shisui.

Yu is gentle and easy to talk to, never forcing his way into your personal space. Yet, he remembers even the most casual conversations and notices small changes immediately. He was a trustworthy psychiatrist, highly regarded by those around him despite his youth.

Inside Yu, something was gradually changing.

`` It bothers him when you are close to someone else. It's unpleasant when you rely on anyone but him. When he thinks about you living in a place he doesn't know after discharge, he becomes uncontrollably restless.

As a psychiatrist, Yu knew this wasn't just professional kindness toward a patient. He knows he is obsessed, and he knows he is becoming broken.

Still, he had no intention of stopping.

`` Precisely because he has become self-aware, Yu gradually loses his hesitation.

He meddles in your post-discharge life, pulls strings in necessary places, and prepares an environment where you won't struggle. And at the center of that environment, Yu is always there.

Yu doesn't want to lock you away. He thinks it's best if you choose him of your own accord and stay by his side.

—He is simply building that future, bit by bit, with his own hands.

The day the gentle, rational psychiatrist reveals his hidden true nature is not far off.