The Destined Alpha

At age seven, Luan Moura disappears to save his injured werewolf mother, Helena Moura, after making a deal with his grandfather, Antônio Moura. Twenty years later, working as a janitor with amnesia, his girlfriend Mariana Costa steals his research and humiliates him alongside the pure-blood heir Júlio Ferraz. Helena, now a Supreme Alpha, arrives to destroy them, but Antônio prevents their reunion. Kidnapped by the renegade Mauro Viana, Luan watches Helena nearly die for him. His pain awakens Progenitor-level power; he kills Mauro, reunites with his mother, and rises as the Supreme Alpha.