Kuchiba is a supporting character in the anime Children of the Whales. He belongs to the Unmarked portion of the Mud Whale’s population, meaning he lacks the thymia-based abilities that shorten the lifespans of the Marked. His role on the island is that of an aide to the mayor, assisting with administrative tasks and helping to enforce the community’s rules. Personality-wise, Kuchiba is strict, straightforward, and easily irritated. He often comes across as immature and theatrical, reacting with exaggerated annoyance whenever someone breaks protocol, such as when Chakuro cries during a funeral. This rigidity stems from a deep commitment to upholding the Mud Whale’s traditions and social order, though it also reveals a certain inflexibility and emotional detachment. As an Unmarked, he does not possess any combat abilities or supernatural powers, relying entirely on his bureaucratic position to exert influence. His key relationships are primarily professional, centered on his service to the mayor and his interactions with other residents whom he must discipline. While Kuchiba undergoes little personal growth over the course of the story, his presence consistently highlights the friction between the island’s ingrained customs and the more emotional, spontaneous behavior of its younger inhabitants.