You stole my S-rank talent, I have a system!

The Story

Foster father’s theft of an S-rank talent triggers a mysterious system for Charles. He rapidly demonstrates his new power by contracting an S-rank Spirit Beast, clearing Hunter Tower trials, and defeating Ryan. Rare resources allow him to boost both his own strength and his beast’s abilities. This surge in capability drives him to venture into another dimension. His ultimate goal is to locate his real parents after losing his inheritance to a family member.