I Upgraded Silently and Killed Countless Ghosts.

Fang Yan traveled to a fantasy world and was reincarnated as a shepherd boy. When he was seven years old, while herding sheep, he accidentally entered the Immortal Demon Cave and became the experimental subject of the Immortal Demon Cave Master. Although Fang Yan obtained the perfect Daotian Divine Body, with all the strength, speed, and defense points, and unparalleled cultivation qualifications, his life span was too short due to being too perfect, with only one month left in his life span, and his life span could not be extended. In the end, the Immortal Demon Cave Master released Fang Yan and continued to search for the experimental subject. The abandoned Fang Yan did not kill himself. With the help of the immortal soul-fixing pearl, he continuously killed the soul-seducing ghosts and extended his life in disguise. At the same time, he absorbed the power of the ghost clan, enhanced his own strength, and even sacrificed and refined the black dragon with supreme murderous intent, sweeping across the summit of eternity. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.