Seafood-free food options in Tokyo, Kyoto, Osaka?

Hi there! My mom is allergic to seafood (not just shellfish). While we are making an allergy card to use on our trip, I just wanted to come on here for your suggestions on places we can visit in Tokyo, Kyoto, Osaka for non-vegetarian food that is fish-free.

Would greatly appreciate suggestions for Ramen shops, izakayas or restaurants.
Thank you.

by Savings_Team4029