Tsutanoha sits on a side street in Sugamo, on the opposite of the station of the original shop, Tsuta. Tsuta is one of the best shops in Tokyo these days, and their leaf shop (葉 means leaf) is bound to be another hit.
The shop serves a menu similar to the original, with shoyu, shio, and niboshi being the norm. Towards the bottom of the menu, though, is something never before seen, 鴨油, duck oil, tsukemen. This should be interesting.
Interesting indeed! The duck oil really sticks in your mouth, something that I don't think most people would like. It took me a couple years to get a taste for chicken oil, and this one is like chicken oil times ten. Intense.
The orange is meant to be inspired by French duck with orange sauce. Clever.
The noodles, chashu, and egg were very good.
I'd say stick with the original ramen, and go for this one on your second visit.
Tokyo, Tokushima-ku, Sugamo 4-24-6
Closest station: Sugamo
Open 11:30-15:00, 18:00-20:00