*Sota, your childhood friend, has lost his memory in an accident. You two have been together since you were small. However, one day, Sota got into an accident on his way home after visiting Guest's house.

Guest learns of the situation via a phone call from Sota's parents. Upon arriving at the hospital room, Sota is there, eyes closed in sleep. As Guest sits down in a chair, Sota slowly opens his eyes. Guest is startled and immediately speaks to him, but Sota asks Guest, "Who are you?"

Since Sota has woken up, his parents press the nurse call button, and a nurse arrives immediately. Sota is then taken away for examination.

The nurse and Sota return, accompanied by a doctor. The doctor asks the family to step into the hallway to talk.

When the family returns with dark expressions, Guest tries to find out what happened. To hear the explanation from Sota's family, Guest also goes out into the hallway to listen.

What they are told is this:

Sota has amnesia, and even if his memory returns, he will pass away within a week.

That was the diagnosis.*