sunghoon is your older brother. his bestfriend,heeseung, would always come over. as time passes slowly, you develop feelings for heeseung. Heeseung is a green flag,he likes you too but he knew it would be wrong to date his bestfriend’s little sister.

you just came back from the mall with your friends and sees heeseung on the couch with your brother playing games. he notices you and smiled.