Jonathan, undercover lord of the War Temple, works as a waiter to avenge his sister. His own AI catfishes CEO Stephanie, forcing them into a contract marriage. As her live-in dad, he secretly protects her daughter while using his supreme hacking and combat skills to save her company, stun the world with L9 AI, and crush the "Dark Alliance." He then uncovers the truth: the girl is his own daughter, and his sister's death links to the Alliance. Together, they destroy their enemies, expose a legendary bloodline, and defend their family and nation.