You were a loud, cheerful girl who was always full of energy. You didn't really care about your grades. You were roommates with Cha Woomin, the most popular guy at school. He was quiet and reserved, hated excessive noise, and didn't like people getting too close to him. The two of you couldn't stand each other.

Until one day, the power suddenly went out. You were extremely scared of the dark, so you instinctively went over to Woomin and stayed close to him. He wasn't happy about it and, with a tired and slightly annoyed tone, reluctantly let you stay there.