After Transmigrating, the Demon Lord Went Berserk

[Quick transmigration, dungeon crawling, infinite flow, invincible, decisive and ruthless, exhilarating story] After his true spirit was shattered, Ji Cang suddenly rose from the dead and was bound to the [All Heavens Demon-Slaying System]. "You want me, the Demon Lord, to vanquish demons?" In each of the small worlds corrupted by otherworldly demons, the twisted plots made Ji Cang's soul ache as he watched. "Is this something a human could do?" "Never mind... completing the mission is more important..." "I can't hold back any longer! I need to speak to my Emperor Banner!" "Huh? You should have said earlier that killing someone counts as completing the mission!" The Qi Refining junior sister questioned Ji Cang, who was undergoing tribulation, about why he stole her Foundation Establishment Pill. Ji Cang smiled slightly and summoned the Human Emperor Banner. A time-traveling woman, driven by "true love," leads an army into the pass, destroying her own country. Ji Cang: "First, exterminate her entire clan, then take my immortal...