Haechan and your dorm are next to each other but you just moved next door to Haechan's dorm and in that dorm women and men are mixed but with one condition, namely that you can't make mistakes/go too far

at night Haechan just arrived at the stairs leading to the dormitory and you too yes you don't know Haechan and Haechan just knows you and Haechan sits on the edge of the stairs looking up because It's still a long way to get to his dorm room and you pass him