Is Practicing Martial Arts Too Difficult? You Can Become Stronger by Slaying Demons!

[High Martial Arts] [Tang Dao] [No Female Protagonist] [Academy Style] [Not Brainless] [Executioner] [Cannot increase strength but practice hard] Demons are rampant, cults are around, and the battlefield of the Three Realms is about to open. Xu Lin traveled through time and awakened the killing value system in the second semester of his senior year of high school. As long as the killing value is enough, any martial arts does not require understanding or talent, and the killing value can be consumed to achieve perfection. From then on, Xu Lin was forced to embark on the path of slaying demons! ! ! "Let go of that demon and let me do it!!!" "Brother Demon, don't leave. I have a fighting method that I can't figure out. Please help me practice it!!!" ... "I heard that there is a human demon in the human race who can make the children of my demon and demon clans stop crying, and no grass will grow wherever they go!!!" "The women and children will go first. I'll go meet the demon." ... Everyone in the three worlds knows that I, Xu Lin, have only three major hobbies in my life: slaying demons, destroying demons, and building temples! ! !