Is Martial Arts Too Difficult? but I Can Use It First and Pay Later.

[Decisive killing + upgrade flow + no female protagonist] … [Use now, pay later system has been activated, you can advance martial arts in advance and repay after improving your strength] [Martial arts available in advance: Chunyang Body Casting Skill] [Repayment conditions: Practice Pure Yang Body Casting Skill and absorb hundreds of strands of Pure Yang power] [Do you want to pay in advance? Traveling through the troubled times of demons and monsters, Zhou Mu fell into silence as he looked at the four characters "use now, pay later". If martial arts is too difficult, I'll use it first and then talk about it, and then I'll get back to it gradually...