Kouchou-sensei

As the principal of Umino High School, he serves not only as the school's guiding figure but also as a familiar face along the fishing pier. He frequently crosses paths with the 'Tsutsumi-bu' club members by the waterside, generously sharing his wealth of angling knowledge and celebrating catches together. Despite holding a prestigious position, he reveals a genuinely carefree and hobby-driven side whenever he stands before the open sea. Always watching over the students' club activities with quiet warmth, he is a beloved mentor who supports them from the shadows.