I like vocaloid, I'm sure some of you people out there in the world like vocaloid, so why not get to maybe be in love with some of them? Will have male and female reader for each vocaloid.

My name is (y/n) (l/n) and I have no idea how I came here to the underground. No, really, I just woke up in a patch of flowers... Anyways, I've heard legends about monsters that live underground... They exist. But something about them is just... Odd... I've heard from monsters that the king is obsessed with us humans and well... I'm not really sure how to feel about that... In this book, you are going to read my adventures from when I travelled through the terrifying city's full of monsters who... All... Love ME?!?

"If I were you, I'll be carefull. There's a legend that tells that if you move on to this place, you'll never come back." I already made my choice. And I decided to go here. See if this legend was true, or false.