Days of my Life: Experimental

Kakashi had lived his whole life with his mother, Ako and sister, Tokah in a barrier. Each time they asked their mother, why they have to stay in the barrier, she always reply them by saying that the world is a dangerous place and it's too dangerous for special people like him and his sister. One day, their home was invaded by some unknown men, the next day. Even though his sister was able to escape, his mother was killed right in front of him and he was kidnapped to be use for some experiments. Kakashi was able to escape years later after the building collapsed and was saved by an academy that trains people with powers. Kakashi decided to join them as a means of finding his sister and in a quest for revenge.