Tsukamoto Fresh Fish
A direct-sales restaurant opened in 2010 by a fresh fish wholesaler that visits the Nagahama market daily. Their kaisen-don (seafood rice bowl) is famous locally as worth queuing for. Yahoo Maps 4.28 (191 reviews). 70 seats including charcoal grill items and private rooms. Authentic value from direct-from-fisherman sourcing, not tourist pricing.
Reviews highlight 'unmatched freshness from daily market runs,' 'many regulars visit repeatedly for the limited 10-per-day premium kaisen-don.' 'Reasonable prices for a tourist area.' Tabelog shows many local repeat customer reviews. Ranked 7th of 490 in Itoshima on TripAdvisor. No sakura suspicion.