Keigo Nakadai is at a crossroads in his life. He's 25 years old, kicked out of his job as a computer programmer, forced to work as a handyman. Then he gets an offer he can't refuse. His uncle owns an apartment block called Paradise Heights, but has to go on a business trip. Little Misa's in charge for now, but could Keigo pop in and make sure she's okay? The nights get long and lonely at Paradise Heights. Keigo thinks he's died and gone to heaven.