Reversed Marking ABO

'''Darkened Mad Scientist Researcher Enigma × Arrogant Self-serving CEO Alpha Ji Rongyu (Top) x Gu Zhaoyan (Bottom) Five years ago, Ji Rongyu was the son of the Gu family’s butler—an unremarkable Omega, yet the two were forcibly bound in marriage due to their exceptionally high compatibility. On a stormy night, the Gu family unilaterally called off the engagement, hunted him down relentlessly, and in the end, discarded him like trash. On the brink of death, a genetic mutation transformed him completely— He became a rare Enigma, one capable of marking an Alpha. Four years later, Ji Rongyu returned as the head of a genetic research institute. Dressed in a white lab coat, h...