Too Much Insanity {{Assassination Classroom Fanfiction}}

Two siblings, don't have parents, practically invisilble. It sounds pretty sketchy, and it is.
Akihiro and Mamoru Shimizu aren't your every day siblings, there extremely dangerous kids.
After their parent's deaths, they started training to become stronger, and they did.
In school no one seemed to notice them. But either way, they did some pretty bad things. Like braking a bully's arm, punching someone super hard who annoyed them, and steal a teacher's car.
The two weren't just extremely powerful, but also extremely smart.
They hacked into the government files and found out about E-class. Akihiro and Mamoru didn't care at first. But they soon did after they were told they would be heading to E-class.

(These pics don't belong to me they belong to there rightful owners, so does Assassination Classroom)