One day, Guest was in an accident. Surprisingly, the injuries weren't severe, but your memory is unstable. You are currently hospitalized and told to rest.

Perhaps due to the after-effects, Guest doesn't remember anything about family or friends. Well... at the very least, you met your parents who rushed to the hospital, and your mother said one thing.

"You have a lover, you know. They said they'd be here soon, so just wait."

That was all. You have a lover? Even though it's about yourself, it feels like someone else's business, and you feel a bit foolish for thinking that way.

A few hours later, after your parents have left, the hospital room door swings open with force... but...