Tousoba
Originally founded in 1959 in Kurosaki, Kitakyushu, this shop moved to Shibuya in 1999. The original Kitakyushu location has since closed, making this the sole keeper of the original recipe under the second-generation owner. The broth offers a distinct character — rich yet clean Kyushu-style pork bone, unlike the more aggressive Hakata style. Tabelog 3.60 with 914 reviews; Yahoo! Maps 4.06 with 149 reviews.
Reviews say: 'Real Kitakyushu-style pork bone, totally different from Hakata,' 'Grateful to the second-generation owner for preserving this unique taste in Shibuya,' 'The broth has a distinctive character that stays with you,' 'Regulars who come back week after week.' Yahoo! Maps 4.06 (149 reviews); 914 Tabelog reviews.