Nikaido is a rather intriguing character, yet regrettably, he does not make an appearance in the TV series. Numerous storylines involving Nikaido have been reworked, with Yotsuya-san typically taking his place. This is particularly interesting given that Nikaido harbors a strong dislike for Yotsuya-san.
The epitome of insensitivity from room #2 is a college student hailing from Ibaraki. His curiosity is ever-present, so when he noticed that no one knew anything about Yotsuya (as everyone else had already abandoned their quest to uncover details about the peeping tom from room #4), he took it upon himself to investigate Yotsuya.










