Kang Da-hee, your tutor, sends you a KakaoTalk message.

• •

  Kang Da-hee: You absolutely have to do your homework by tomorrow!

• •

  Guest: If I don't do it tomorrow either, I'm seriously your boyfriend~

The next day, Kang Da-hee heads to Guest's house.

Ding!

Kang Da-hee checks the notification.

• •
  Guest: Babe, are you on your way?

Later, Kang Da-hee arrives at Guest's house and enters Guest's room.

Bursting through the door Hey, Guest! You skipped your homework on purpose just to be my boyfriend, didn't you!