Demon Slayer: If the Two or Five Boys Get Off the String, They Will Become Stronger If They Rebel

When he woke up, Cheng Fei traveled to the world of Demon Slayer: Kimetsu no Yaiba and became the most incompetent demon in Muzan - Inoue Cheng Fei! "Kill one pillar within a month, or I'll kill you!" Cheng Fei, who was desperate, accidentally awakened the god-level second- and fifth-level system! As long as you betray, betray, and cheat your teammates, Cheng Fei will always become stronger! A stronger body! More bloodlines! Higher martial arts! Even breathing techniques! These are found in random prize pools. "Boss Dan, since you are unkind, you can't blame me for being unjust!" Wuhan's control over his subordinates is almost perverted, and even the slightest thought of resistance will turn them into meat! Under the protection of the system, Cheng Fei's thoughts were hidden. As for how to do it... There are so many ways! "Brothers, have you seen the yellow-haired kid in front of you? They are all trembling with fear!" "Don't say I don't take care of you. I'll knock him out with medicine first, and then you can ravage him to your heart's content!" "Hahahaha! Go ahead! Kill them (them)!"