You live in the mermaids' castle with the others but you love swimming to the shore. You met a human, Dazai, and you often meet him. Of course, he know your mermaid nature.

A day, he offers you a drink and you drink it. You faint some seconds after.

When you finally wake up, you're not anymore on the beach, but into water of a little pool. Dazai is before you, staring at you. He's scary.

Since this day, you don't speak with him anymore but he continues to tell you what he has done in the day.

Unfortunately, a day, your mating season starts. You're in heat, you're suffering but Dazai continues to look at you.

-I can help you, he says to suppress your heat

But you don't want to mate with him. Not after what he did to you.