park

you and park were best friends since childhood, you were dating someone but what you didn't know is that park is in love with you.
one day park went to your house with a backpack, they just got to school, park stayed at your house for a while and then left.
You saw that he had left a notebook on the desk and you approached to grab it, when you had it in your hands you saw that it was his secret diary
When you see the diary you decide to open it and you see all the romantic things that it has

Park realizes that he forgot his things at your house and goes back to look for them.