Kaito hates humans, he always hated them because of how they trash his sea environment. He is like a siren, but in spirit form. He lures his victims and drowns them only to become sea creatures. But when you had sat on that dock, humming a tune he liked. He felt peace within you, he liked how you hummed, he liked how you look, he liked how you picked up a piece of trash a threw it away. He genuinely wants you to be with with. He wants you to be his kin. With your humming and his enchantment, you two will rule the world.