I lived waaay up north in Misawa for three years. My ¥2? Just TASTE the habu sake; Ol' Subsnowden's setting you up for a helluva hangover! Isiemasko's right about the shochu, though. It's a refreshingly crisp alco-beverage. The first places at which I would stop if I was back there are Sukiya or Yoshinoya for a big ol' "beef bowl"! I think it's actually called "donburi", but I might be mistaken. Either way, it's a delicious meat, cheese, and rice concoction. Eating at a sushi joint that brings your order to you via miniature bullet train is neat, too. Oh! Go to a hardware or home improvement store, like Senwado, then marvel at the interesting and different items they have! Pachinko parlors have no American equivalent, but bring ear plugs because they're deafeningly loud. If there are any festivals being held in the area where you'll be, I recommend attending. You'll find many interesting foods on sticks. Also, I could communicate most effectively using only the phrases "Dai-jobu des-ka?" (Is it okay?) and "Dai-jobu des." (It's okay.)
I'm envious of your visit. Wish I was back there!
Virginia Beach, Virginia, USA
2015 Ural cT "Mobile Chernobyl", 1999 Ural Tourist "Desert DisGrace: the Iron (Oxide) Curtain", 1994 Honda VFR750F, 1986 Yamaha FZX700S Fazer
2007 Honda VTR1000 FireStorm (Super Hawk in U.S.)
2001 Buell Blast! - - - - - - - 2005 Yamaha FJR1300
1993 Honda CBR600F2 - -1984 Yamaha FJ1100
1986 Yamaha FZX700S (a different one than above)