Otona no Shio Soba
Google's #4 ramen in Kawaguchi (4.2/453). Concept of 'salt ramen for adults,' featuring elegant, no-additive salt soba popular with locals. Lunch-focused operation (some evening hours). Has carved out a unique position as a salt ramen specialist in Kawaguchi.
Reviews say 'the pinnacle of elegant salt ramen,' 'worth coming to Kawaguchi just for lunch,' and 'the clear broth is so gentle.' Google 4.2/453 reviews.