It's really disturbing ╥﹏╥ like after they travel to fl's world, the mermaid took care of Anan. He watch her grow up and they still got married and had lots of children. The mermaids really are too f*ckd up. They mate with the female they only have which is their mother.
Spoiler:- that mermaid would become Anan's mate in future
But I felt uncomfortable seeing today's chapter (╯°Д °)╯╧╧