Yin Miaomiao is bound to the Black Moonlight System. In each world, she plays a wicked supporting female character who meets a tragic and beautiful death, earning the male lead's "regret points" in exchange for a chance to be reborn in reality. After completing her seventh life, she receives only 78 percent of the expected reward and considers it a bad review. So she hacks directly into the core storyline of her eighth life, usurping the role of the substitute White Moonlight to become the real White Moonlight herself. She initially thinks this will be another carefully calculated business of harvesting regret points, but little does she know that the secret the immortal venerable Mo Wuyuan has kept for a thousand years runs deeper than any script.