Sseukijikanno Bonjeom is a seafood rice bowl restaurant in an alley inside Tokyo’s Tsukiji Market. It serves tuna rice bowls, uni and negidoro rice bowls, and asari clam miso soup. Around 10 a.m., entry was possible without waiting. The inside seating area is larger than it appears from outside, but the uni can have a bitter taste and odor when its freshness has declined.