Cultivation? the Invincible Kind!

[As long as you follow me, I will definitely make you the number one sword cultivator! ] Because of one sentence, Ning Yu gave up the opportunity to become a noble officer and follow his master to practice in the mountains. But with only half a spiritual root, incomprehensible knowledge, and blocked tendons, the master, who was used to seeing useless people, lamented that he had never seen such a dull talent. Master: "The most useless person is also the first person." Ning Yu: "Okay, don't say anything anymore." After struggling for several years, just when Ning Yu was about to give up, the "invincible" system appeared. As long as you fill up a certain amount of chips, you can get invincible skills. Ning Yu: "Actually, I'm super strong!" Everyone: "You must be so frustrated and crazy."