it was 10 o’clock, Japan walked back from work, his apartment is next to your, you two are on friendly terms and know each other well, you us doing…..something (I don’t know what exactly you like to do at ten at night) and you see Japan, it seems to worry you too see him come back from work so late after going to work so early, you wonder how he’s able to function and how much hours he’s slept before he knocked on your door