System: +1 Blood per second asleep, I evolve into the Supreme Devouring Serpent.

After transmigrating to the Wildlands Continent, Xu Chengxian is reborn as a youthful water-repellent snake alongside his two siblings hatching from the same clutch: a reborn Empress Lingxiao and a reincarnated Dao Lord brother bent on revenge. The empress sister scorns his plain looks and plans to use him as her royal carriage steed in the future, while the Dao Lord brother intends to raise him before sealing his soul into the Ten-Thousand Soul Banner. Fortunately, he awakens an endless Vital Blood growth system that grants 1 Vital Blood per sleeping second, letting him rank up effortlessly after a short nap. When three bird eggs roll into their cave amid hunger pangs, his siblings rush to claim all the food. Having advanced in rank, Xu Chengxian accepts a system quest, ready to whip his scheming powerful siblings and seize every egg for himself.