Lu Wuwei transmigrated into the cultivation world and awakened the Stomach Devouring System: the more he ate, the stronger his physique became. However, after waiting bitterly for three years, he was rejected by an immortal sect because he lacked spiritual roots. A ragged old man happened to take a fancy to him and even offered to forge spiritual roots for him right away—this master turned out to be a demonic cultivator! From devouring to survive to guiding Qi into his body, Lu Wuwei, accompanied by a gluttonous spiritual hound, forged his own immortal path with mortal bones under his master's outrageous teachings.