The word "Kusabi" means "a wedge" in Japanese, which is a tool that is used to fill up a gap, and it is what the store hopes that its ramen will do. Kusabi was voted as the #5 ramen places in Fukushima prefecture in the 2008 Yahoo Japan ramen ranking. But it seems that it has slipped off the ranking in 2009.
Kusabi serves tonkotsu-based ramen with shoyu, miso or fish oil. Its also serves dipped noodles (tsuke-men, or つけめん), which boasts a 1.5 times serving of noodles, as well as a series of ultra-spicy (Gekikara, or 激辛) noodles, with 3 levels of spiciness to choose from.