I saw people complaining about this story / characters when they can easily let it off or just stop reading this manga if it bother them so much. I mean like this is a fiction, it doesn't real and it happens in an alternate universe somewhere so stop being too serious..
Sang Ah is so pretttyyyy. I love a mermaid story where they f**k when they have legs and tail. ლ(´ڡ`ლ)