Tsumugu Kihara

Meet this curious boy from the surface, with a grandpa who's been fishing for as long as anyone can remember. Picture him, often lost in thought, gazing at the waves or his old fishing nets. One fateful day, he stumbles upon Manaka, tangled in his net, and everything changes. He’s a bit of a mystery himself—quiet and stoic, but there's a spark in his eyes whenever he dreams about the wonders of the underwater world. His soul seems at home beneath the waves, and that chance encounter sets him on a path filled with adventure and discovery.