Yotsuya (四谷) is the resident of room 4 of Ikkoku-kan and a major character of Maison Ikkoku.


He is a mysterious man who finds enjoyment in mooching, voyeurism, and generally tormenting his next-door neighbor Yūsaku directly and the manager Kyōko indirectly, as it is her job to repair the damage done by him, as he is famous for breaking a hole through the adjoining wall in order to be with "young Godai" (and to use a smaller hole in the wall of Yūsaku's room to peep into Akemi's), and he is willing to reveal the secrets of others if it benefits him, such as telling Kyoko what Godai does at night, in order to prevent the hole from being repaired. He is usually seen dressed in a business suit, a yukata or similarly formal attire and tends to speak in a very formal manner (even while drinking and partying with Akemi and Mrs. Ichinose), but what life he may have outside of Maison Ikkoku is a complete mystery to everyone. Yotsuya claims to have a job (but is not above stealing Yūsaku's food) and comes and goes at odd and changing hours, keeping a schedule known only to himself. His true name is never known; in fact he provided more than one given name, including Tamezo and Goro. An album in Maison Ikkoku's attic found by Kentarō reveals that the history of Maison Ikkoku is his family history.[1]


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  • He is among the major characters whose name involves a number. His name Yotsuya means "four valleys" which is also the name of a district in Tokyo associated with a famous ghost story, therefore he is representative of the number 4, which match the number of the room he lives in.
  • He is the only tenant of Ikkoku to be highly contradictory. Despite his formal speech and clothing, his actions are the complete opposite.
  • It has been speculated among fans that Yotsuya is the same person as 'Sekoi' in another Rumiko Takahashi manga, titled Dust-spurt. In it, Sekoi is a secret agent working for the "HCIA" (Hinomaru Central Intelligence Agency).
  • His voice actor provided the voice of characters from 2 other anime adaptations of Rumiko Takahashi's manga series: Megane from Urusei Yatsura, and Sasuke Sarugakure from Ranma 1/2.
  • In episode 31 of the anime version of Rumiko Takahashi's latest work, Kyokai no Rinne, a Street Vendor is featured bearing a strong resemblance to Yotsuya.


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  1. Episode 44
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