My hotel is pretty closeby, so this was a good lunch option for me. You make your selection at the machine outside and pay in order to get your ticket(s). Then go inside and hand over your ticket to the staff. It's only bar seating and space is limited, so it's easiest if you come here by yourself or as a couple. If you don't know Japanese, use Google Translate on the machine outside; it works well.

Although they are known to be able to cater to people with specific diet requirements, I am not one of those people. I just came here for the stuffed protein bowl with two wonton on top of all the meats. The ramen bowl was absolutely filled to the brim. The broth was tasty and light, to balance out all the protein in it. Only thing is that it was quite pricey (2000yen). But they do have cheaper options of course.