Wahachi is an izakaya on the 10th floor of Amu Plaza, connected to Hakata Station, serving Kyushu dishes, udon, and Japanese pub food. The 11-course menu includes sashimi, chicken nanban, fried items, mentaiko potato salad, and kabocha cream curry udon, with unlimited drinks available alongside it. Hakata-style udon has soft noodles and a deep, light broth, and choosing udon is the flow at the end of the course. Staff service is uneven.