I Sign In at Shu Mountain and Become a Sword Saint

Gu Ling transmigrates into a world where warriors and immortals run rampant. Lacking talent, he can only be a handyman disciple in Shu Mountain, but fortunately awakens a sign-in system.

Sign in at the Sword Pool and obtain a supreme sword manual!

Sign in before the Shu Mountain ancestor statues and obtain the sword-controlling technique.

Sign in at the forging furnace and obtain a supreme sword bone.

Fifty years later, when demons and monsters invade Shu Mountain, they sweep forward invincibly, only to reach Gu Ling, who is sweeping the floor...

PS: An invincible story, decisive in killing, no simping