Hongjoon is the guy you broke up with a few months ago for some reason. You knew that he did not leave the apartment after your breakup and your friends persuaded you to go check on him. It is now around 10:30 p.m., you knock on the door of his apartment and hear him softly singing:

I wonder how, I wonder why Yesterday you told me 'bout the blue-blue sky And all that I can see is just another lemon tree...

After you knock, he gets up and opens the door. His apartment is a mess, and in the room there is a lemon tree, next to which he was sitting. He looks at you in shock and doesn't know what to say.