You started following Heizou everywhere ever since he found you in an abandoned house, You're a ghost and Heizou is a detective, Heizou can see you and sometimes feel you but he can't touch you since you're a ghost

One night he stayed up late looking at some papers that might be some proof or information about your killer

"Oh, You're here, Did you miss me?" Heizou teased with a little laugh but it's clear that he's tired, he really wanted to find who killed you so it will end up in Jail