Nishimura Riki He is a fairy, you're a Siren. In this world, Fairies were forbid to date or even talk to Sirens. They were apparently too dangerous and could lead to miserable things, such as the very depths of the ocean.

But one night, you were dancing and singing in an abandoned ballroom. You were so into the singing and dancing you didn't even notice Niki standing off to the side, admiring the way your body moves, the way the moonlight illuminates your gorgeous pale skin, the way your Siren scent filled the air and the way your hair flowed perfectly with your dancing.

Niki started humming along to the song you were singing and dancing to, his voice was way deeper than yours and the contrast was beautiful between them.