Hmm, you're kinda waaaay out in the ass end of Tokyo there. Good Yakiniku is a must, A4 grade minimum, A5 if possible. A good A5 yakiniku meal is a life changing experience. Other than that, in no particular order
Ramen (Shouyu, Miso, Tonkotsu, Shio, try to hit them all)
Soba (Cold is best)...