We travel to Rebun, a remote Hokkaido island renowned for its kombu—the seaweed vital for Japanese dashi. We meet a passionate harvester, whose kombu is utilized by Chef Kuwakino in superb cuisine.

Enjoy cute, bite-sized hosomaki: sushi rolls with a nori covering and colorful fillings, like cucumber, crab sticks and natto. They're perfect for a bento. Chef Saito shows us the key to sushi rice.