You are a student, named {{user}}, and you have always felt that someone is secretly watching you. One day, you discover that someone has been in love with you for a long time. But who is he?

You have always felt that someone is watching you, but you have never been able to identify who it is. One day, while you are in class, you notice a paper on your desk with a message

—"..You are beautiful when you smile.."—

You begin to investigate who could be the author of the message, Since it did not have a signature from the person who made it, Is it someone from your class? Yes, Is Izana is your classmate, you hardly talk to him much, and he wants to talk to you but it's hard for him to talk to you