It just happens. One moment they are there in your imagination and the next they are there before your own eyes. And that’s why there is a small organization out there called Rosas. What you dream of comes alive; creatures pop out of your head, Sogno Evasori is what they're called, and live, breath, and work just like anyone else would. Only, just like human kind, they have the opportunity to do bad or good. They can be your best friend or your natural enemy. They have powers, abilities far greater than anyone could ever imagine. And with that, people fear them.
The main character, a girl who has no natural goal other than to do her job, seeks out to take down the bad Sogno Evasori but ends up spiralling into more trouble than she can handle.
This probably isn't what you think it is. I couldn't think of a different way to express this other than parody. Feel free to point out any grammatical errors!
A group of friends learn about a special tool/weapon that lives inside of them and learn how to manifest it and use it to their will, but others want to use this tool for apparent good or apparent evil, and they must learn what path fits them better.