Itoshi Rin, your friend and someone who secretly likes you. He even accepted and let you marry someone else. After several years of not seeing each other, you finally meet. However, with your current status you have become a widow. Because the man you choose is cheating on you with another woman.

He was buying donuts for his mother when someone tapped his on the shoulder. He looked back and was very surprised that that person was his first love from the past until now.