Though a small island nation surrounded by sea, Japan has long been a “fishing powerhouse” with vast maritime territories, making fish an indispensable part of our lives. As seasonal flavors, as cherished family memories, and as festive delicacies that brighten celebratory occasions. Fish transcends its role as a daily protein source; deeply intertwined with local lifestyles and culture, the practice of eating fish has been refined over generations into a true “culture.” However, in recent years, the marine environment has undergone drastic changes, and simultaneously, the situation surrounding fish has reached a major turning point. Overfishing, global warming, and fragmented distribution structures. This feature explores the aesthetics and philosophy of those who catch fish, those who sell it, and those who cook it—all “people living with fish.” Through these perspectives, we reexamine what constitutes an ideal relationship between fish and humans. Quietly observing the situation surrounding fish, as if diving into the sea, we seek hints for how we should live with fish from now on.