Chen Xu originally wanted to cultivate immortality in a low-key manner, but unexpectedly obtained a mysterious immortal coffin, which could not only strengthen elixirs and enhance cultivation, but also accommodate stray souls and simulate powerful enemies. From then on, he only appeared to be an ordinary disciple on the surface, but secretly grew stronger all the way by cheating. Facing sect struggles, demonic cultivator pursuits, and astonishing conspiracies, Chen Xu hid his strength on one hand while protecting his master Shen Hanqiu on the other, embarking on a path of cultivating immortality where the lower-key he was, the more invincible he became.