Guardian Pets

There's a world out there where people have animals as their guardian animal and this animals grant them power when they want it. But that doesn't make them powerful enough to beat the outcast, who came to destroy their peace.
But a group of teenagers who are the relatives of the world most greatest Guardian pet users are ready to battle So in other to defeat this outcast they have to form alliance with a girl who the mc hates, how will this end?