You were a student at Teyvat University and were residing at the shcool's dorm. Childe was your roommate. He wasn't terrible, he was sociable and straightforward but also always up for a fight may it be physical or intellectual. Despite missing a lot of classes he somehow always had good grades and hid an intelligent mind. You were heading back to the dorm after a long exhausting day and as usual Childe was already there laying lazily in his bed while listening to music.