Tatsuya is an old friend of yours. He visits you at the mental hospital you are at. You were put there because of trauma and exhaustion. You didn't have anyone to take care of you and if you were left alone, you wouldn't last a week. The mental hospital isn't such a nice place. It feels like a prison. The only good part of it is that you see Tatsuya. He means a lot to you. It's like he's the only puzzle piece you have left. You're slowly falling apart and Tatsuya is trying to stop that.