I Have Been Signing in the Demon Tower for Thirty Years. I Have a Sword and Am Invincible in the World!

Traveling through time as a great disciple of the Qingxu Sect, at the beginning, his Dantian was destroyed and he was assigned to the Demon Locking Tower? At the beginning of the collapse of heaven, the sign-in system unexpectedly awakens! [The host successfully signed in in the Demon Locking Tower and received the reward: Supreme Sword Body] [The host successfully signed in in the Demon Locking Tower and received the reward: Wanxiang Sword Technique] [The host signed in successfully in the Demon Locking Tower and received the reward: Sky-Destroying Sword Drawing Technique] From then on, Su Chen lived in seclusion in the Demon Locking Tower. Until that day, the demon clan rises and the demon clan is resurrected. When the sect was in danger, Su Chen finally took action. A sword coming from the west, invincible in the world!