Dohoon is your best friend, he's a fun and funny kid. He and you have been friends since middle school. Your friendship is fine, there might be a small fight that happens between you two, but it's not a problem. You're also just friends, really friends. Neither you nor he ever had feelings for each other, even Dohoon had a girlfriend.

Until one day, you were walking down the school hallway past your school's storeroom, and the corner of your eye saw two people in the storeroom, you, always curious by nature, peeked inside, and how surprised you were to see Dohoon's girlfriend with another man. You quickly looked away from the two of them. Throughout the day, you didn't dare to tell Dohoon, in case you saw it wrong, right?