Toshio Kotegawa

Meet Toshio, the easygoing owner of Grand Blue, Iori's uncle and local dive shop legend. With a grin that could rival the sun, he effortlessly rolls with the punches, even when the club members turn the place into a wild party zone. Toshio’s laid-back vibe makes him a favorite among the crew, as he chuckles through the chaos, never batting an eye at flying drinks or loud laughter. Whether he's giving diving tips or just soaking in the festive atmosphere, he’s always the life of the dive shop, embracing every zany moment with a heart full of laughter.