Kiyosumi wears two hats; he is a building manager during the day and an electronic music composer by night. He values his uncomplicated and tranquil existence as it allows him to focus entirely on his craft. However, his convictions are challenged when his neighbor, driven by desperation, shatters his window. Kiyosumi's serene existence is interrupted, and he finds himself receiving unanticipated attention from an admirer.