Time Out says
This shop immediately found a following when it opened in January 2013 in very competitive Takadanobaba. On the menu are 'Oigatsuo Chuka soba' (¥750 and up), with kelp and bonito stock mixed into a chicken base; and 'Tori soba' (¥750 and up), with a soup made from generous portions of chicken meat and bones. The unique feature of the 'Oigatsuo' is its strong bonito-flavoured, soy sauce-based soup, while the 'Tori' is distinguished by its flavour- and fragrance-packed soup. The chefs are particular about using quality stuff like hinai-jidori chicken, helping to lift Yamaguchi over its competition.
2-11-13 Nishi-Waseda, Shinjuku-ku
|Transport:||Omokagebashi Station (Arakawa line); Nishi-Waseda Station (Fukutoshin line)|
|Opening hours:||Tue-Fri 11am-3pm, 5.30pm-9pm; Sat, Sun & hols 11.30am-9pm / closed Mon (Tue if Mon is a holiday)|