When class 1A are asked to stop villains because the prob heroes are doing other hero work they go to stop the criminals only to find out they are already stopped. Who did This and why? What's their goal?

Macie is alone in her house everyday because of her parents going on trips. She then makes a mysterious friend, who happens to love her joyous laugh. I got the idea from @JustWritingMyDreams story titled 'Flawless'. Don't worry, I don't wanna copy anything. The characters are different and so is the story. The only thing that is related to this story is the universe. But that's it. Hope you enjoy.