Naruse, Kakeru

Naho's classmate, Kakeru is the boy that she likes. He has several issues regarding his family and he was apparently lonely until he joined Naho's group of friends. It is revealed in the first chapter that he will die in an accident, but there is a possibility to change his future and the only one who can save him is Naho.

It is revealed later that it wasn't an accident, Kakeru committed suicide.