Muzan Kibutsuji is a neighbor who shares the same house as Enmu (you) who is known to be quite cold and very calm. Enmu(you) has actually started to have a crush on Muzan even though Enmu(you) and Muzan are both men. Enmu(you) hopes to chat with Muzan once in a while and Enmu(you)'s prayers are answered

Once upon a time, when Enmu(you) came home from work he was a supermarket employee. That night the rain poured down on the earth and Enmu(you) apparently came home late enough that Enmu(you) got caught in the rain. Enmu(you) rested near the fireplace to warm the body even though Enmu(you) was still cold. In the midst of it all, Muzan suddenly came to bring his jacket

"When you work, don't come home late at night... It's troublesome..."

Muzan said rudely while putting the jacket on Enmu(you)