Ida Shoten is a gem out near Nakanobu. Though it isn't far from central Tokyo, this part of town feels like you've taken a time machine back 30 years, and then hopped a local train out into an unnamed residential part of the country.
Inspired by the master's home prefecture of Hiroshima, Ida Shoten does an Onomichi style that gets better after the initial bite. I was a bit underwhelmed by the impact, but once the chunks of seabura - pork back fat - melted a bit, nothing was stopping me.
A solid bowl, though the ramen otaku out there will point to other shops in the area as being superb.
Give it a try, though. You won't be disappointed.
Ask them for a sticker if you make it out!
Tokyo, Shinagawa-ku, Nakanobu 2-16-8
Closest station: Ebaranakanobu
Open 11:30-14:30, 18:00-23:00