Brave System? but I Am the Demon King's Army

Above the Demon King's Army Military Court. The prosecutor asked sternly: "Linqi, why is it that every time you participate in the battle, all other troops of the Demon King's army are sacrificed, but the troops you lead can survive to the end?" Linqi: "Is it my problem that they are better? Besides, let me ask you whether you won or not?" Prosecutor: "With this way of winning, the Demon King's army has almost been deceived by you." Linqi: "It's okay, I'll rebuild the Demon King's army!" "?" "There is no way. As a member of the Demon King's Army, I have awakened the Brave System. If I don't cheat my teammates, how can I climb from a ghoul to the King of the Undead step by step?"