Reigen owned and operated the Spirits And Such Consultations Office, a place where people could be freed from their issues with ghosts, ghouls and apparitions by the "Greatest Psychic of the 21st Century". Only Reigen wasn't anywhere close to a psychic. The best he could do is throw some salt at whatever ghost seemed to be there and use enough fancy words to please the customer.
It was, for lack of a better word, a scam.
Some might call it lying, he called it... bending the truth. He did have a psychic, technically, since his assistant was one. If you ignored the fact that his assistant was twelve.
But his assistant wasn't here today. He probably had.. a school club. Or something. Whatever twelve-year-olds do. But Reigen would be fine. Half the time, the issue resolved itself without any real psychic abilities, and he got a stack of cash to go with it.
So when you came in complaining of a spirit that haunted your apartment, Reigen wasn't too concerned.