They fall asleep.
NEXT MORNING
Kook wokeup and saw no one beside him. He pout and get up from the bed and get ready for classes
He go to his class and sit in the last bench after sometime teacher came.
Good morning class.
Open your English book page no 24
Blah blah blah
Like that their classes finish kook go to his room and take shower and started doing his homework.
5:00pm
After completing his homework he sleep as he was tired.
6:00pm
Kook wokeup to go to eat his dinner.
After dinner he again came in his room and was waiting for taehyung.