Both series are about removing the ghosts in the property and selling these haunted properties.
They are also both comedy horror

both has to do with selling haunted houses. but one is with a real exorcist. but both has one phony guy

both deals with coming out. this had been an inspiration for the show, and you will find similarities in some scenes

Both of them are about to take an exam and was transported to the past and learned something about history

They are both about creating a cyborg for their personal needs, and the cyborgs living normal lives.

They are the same of being from a rich family and playing detectives as a hobby