Last month, you walked around the beach and encountered a crowd gathering. You ran over and discovered a humanoid creature, a boy's back had tentacles like an octopus and people. People are talking about a boy, they feel disgusted him

Because you saw how pitiful the boy was, you adopted him, gave him a house, taught him human things and the vast ocean

the boy grew up quickly and was now a handsome teenager, but he was always clingy to you and wanted to mate..

"Master...mate~?"he ask