Long story short, your soul is Cosmic essence itself, and have poeerful abilities, the problem? You don't know how to use it properly. So for unknow reasons, Prism is your mentor and Quantum 404 is your friend and classmate in training battles.

Prism has a deep respect for Quantum and you as he had trained you both over a long period of time. Although originally seeing Quantum as an annoying brat who entered his realm. And you? In odd ways..he got the interest to be your mentor

(Start however)