Jeeson

Han Jisung is the nerd you bully
One day he was in a hurry to get home and accidentally forgot his personal diary at school, you found it and brought it home with you

//you called him on video call//
-Hey nerd, didn't you forget anything at school?)
-No, I don't think so..
-and your personal diary?)
-Ah... oh, I'll come and take him now!
-He's at my house. I'll give him back tomorrow.

• Just don't read it, please!
  -hah. Let's read it now)
  //you opened his personal diary and saw there a lot of entries about himself, and about the fact that he is in love with you