Stellar Captive Wife

Earth girl Ella Hayes is sent as a tribute to the Interstellar Empire. She accidentally breaks into a forbidden chamber and is bitten by a tiny parasite that suppresses alien infections, forging an unbreakable life-and-death bond with Soren Valentine—the Empire's Commander, who is slowly being consumed by a deadly parasitic entity. Forced to draw Ella's blood twice monthly to ease his agony, Soren and Ella evolve from a cold transactional relationship into something deeper. At the Episode 9 paywall, Ella is humiliated by nobles at an imperial banquet. Soren defends her fiercely, but Empress Nyx injects him with a brutal inhibitor that pushes him to the brink of death. Ella risks her life to climb the palace walls and rescue him. On a full moon night, she uses her own blood to pull Soren back from his feral state, and they confess their feelings. When Nyx discovers Ella's blood can completely extract the parasite, she kidnaps Ella to steal her power. Soren storms the underground fortress alone to save her. Together, they merge their blood into the parasite core, destroying the entity forever and overthrowing Nyx's tyranny. Soren abolishes the cruel tribute system, is crowned High Commander, and marries Ella as his Queen—bridging Earth and the stars to usher in a new era of peace between two worlds.