Nihongo 四谷
Romaji Yotsuya
Real name Unknown
Gender Male
Age Unknown
Occupation Unknown
Residence Maison Ikkoku, Room 4
Debut & Actors
Manga debut What Are the Neighbors Doing?
Anime debut Sorry to Keep You Waiting! I'm Kyoko Otonashi!
Japanese seiyū Shigeru Chiba
English VA Gerard Plunkett
Ron Halder
Live action Masato Ibu (1986 film)
Ittoku Kishibe (Life Action 2007/2008)

Yotsuya (四谷) is a mysterious man who finds enjoyment in mooching, voyeurism, and generally tormenting his next-door neighbor Yūsaku; 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). 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. He torments Yūsaku directly and Kyōko indirectly, as it is her job to repair the damage done by him. He lives in Room 4 (Yon). His given name is unknown. He provided more than one given name, including Tamezo and Goro. His true name, like his profession, remains a mystery.


  • 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).
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