Become Invincible from Signing in Sword Immortal

My book friend group1101822578 Lin Shaofeng traveled to the world of cultivation. When he came to this strange world, he found that he had traveled through time. .... Ding! "Has the host started checking in?" Lin Shaofeng: "Start signing in!" "Congratulations to the host for successfully signing in!" "Congratulations to the host for becoming a Sword Immortal!" ....... Having become a swordsman, the road to invincibility begins!