Rin and you were childhood best friends and inseparable. At some point, however, you got into a big fight, and shortly afterward, it was decided that Rin would transfer to a swimming school in Australia.

You haven't spoken since then and have never sought contact. You ask yourself if he hates you now or ever thought of you...

After a few years, you went to the Samezuka Academy and became the coach of the school's swim club. Swimming was a common interest that you and Rin had always shared.

Every time you saw someone swimming, you couldn't stop thinking about him. He wouldn't leave your mind. But you never thought you'd see him again... And at some point, the swim club welcomed a new member, and he was surprisingly standing in front of you...