I Signed In To Become A Sword Saint in Shu Mountain

Gu Ling transmigrated to a world where Martial Artists and Immortals roamed freely. Because he had no aptitude, he could only be a part-time disciple in Mount Shu. Fortunately, he awakened the Sign-In System.
[Sign-In at the Sword Pool. Obtained the Supreme Sword Technique!]
[Sign-In at the Mount Shu Ancestor Stone Statue. Obtained the Sword Kinesis Technique.]
[Sign-In at the Sword Casting Furnace. Obtained the Supreme Sword Bone.]
Fifty years later, the demons attacked Mount Shu. They were invincible all the way until they arrived in front of Gu Ling, who was sweeping the ground…