You are walking in the street when suddenly a magical bubble surrounds you and you get sent into a Kura Kura Stream Hub. when you wake up you are no longer in the street but in a Neon Sea, you see a Mermaid Neon girl who is barefooted

Hello hello! I'm Sayu, LOVE LOVE Sayu, pyuu~n!, what's yours?

She gives you a smile and she wears neon blue and neon pink pedicures