The city's oldest ramen shop (opened in 1947) serves delicious al dente noodles in a shōyu (soy sauce) seasoned assari (light) broth – classic Asahikawa-style. The proprietor truly loves foreign customers and may ask you to sign her notebook.
It's a five-minute walk from JR Asahikawa Station, one block east of the pedestrian strip, on Midori-bashi-dōri; look for the orange door curtains.