Kokaen
A long-established ramen restaurant loved by Omuta citizens for over 70 years. Affectionately called 'Benjo Ramen' (toilet ramen) by locals — the nickname comes from a public toilet that was adjacent to the original location. The current building also has public restrooms at the entrance. Characterized by punchy pork bone aroma and a thick, salty, dark brown broth. 137 Tabelog reviews (3.43). Listed on Omuta City's official tourism website. Also reviewed with origin story by Rocket News 24.
Reviews say 'Omuta needs this flavor,' 'the nickname Benjo Ramen is deeply rooted in local culture,' 'the intensity of the tonkotsu is addictive.' Verified through multiple independent sources including Omuta City's official tourism site, Rocket News 24, and Jimohack. No sakura suspicion (long-established institution).