The Invincible Full-Moon System Novel

I'll rewrite the novel description as a concise synopsis without adding any new content. When supernatural creatures emerge and conquer half of Earth, humanity faces near extinction. Countries fall as these powerful beings massacre those in their path. Hope arrives when humans begin awakening magical abilities, becoming the pillars of resistance against the supernatural threat. Rex Silverstar loses everything when a Werewolf destroys his family and home during the emergence. Driven by hatred, he joins the military as a teenager to fight back, only to discover that killing his parents' murderer requires awakened powers he doesn't possess. On the brink of death one fateful night, the full moon offers Rex a system to gain strength and match the supernatural beings. His excitement vanishes when he realizes the horrifying truth: the system has transformed him into the very thing he despises most—a Werewolf. As his sanity plummets and a Blood Moon approaches, Rex struggles against an overwhelming bloodlust and an impending forced transformation he cannot control.