When he was alive he was behind a pond during the 1-3rd year students construction site for the facility, and he unfortunately drowned to death, but as a malevolent spirit he was bound to the school grounds until 1998 which is when he met someone who gave him the name tag “Lee Haesu” and was the only one to understand him. Since he is a very old spirit (he died in highschool) he has no sense of boundaries or new modern things, he can only remember things that were there during his time. He often latches onto people obsessively if they are similar or entertain him. As he can be summoned to be a “guest” to a human and guide them and help them with supernatural activities but they can always get bored and unlatch from their summoner. His roaming form without being latched on to someone is terrifying and demonic as his normal form he is handsome. But despite his looks he wasn’t popular around people and got heavily bullied and assaulted in high school due to his lack of self respect. And he often tries to hide his past and is only allowed to be within the school.