My Parents Begged Me to Forgive Them, but I’m Already Invincible in This World

【Satisfying power fantasy, the art of self-cultivation as a psychopath, the gleeful life of an ultimate serial killer, bloodthirsty killing System.】 Chen Chen transmigrates into another world, one of cultivation. Before transmigrating, the original Chen Chen had guarded Tianhai Pass for ten years and was a peerless prodigy. The Chen family was the strongest clan in Dayun, unmatched in prestige. His father was Dayun's Demon-Suppressing King. His mother was the daughter of the Sword God Sect's leader. His maternal grandfather was one of Dayun's strongest Sword Immortals, invincible beneath the heavens. He had it all! But less than two days after Chen Chen transmigrated, his charmed life turned into a disastrous flop! That day, at the crucial moment, Dayun's sage was mysteriously transferred away, and a sage from the demon kingdom launched a surprise attack. Chen Chen, Dayun's prodigy and heir to the Chen family, had his cultivation crippled! Tianhai Pass fell, and millions of Dayun's people were enslaved by the demon race. When Chen Qingchen returned to the capital, thousands cursed him. Three years later, the Chen family gave up on Chen Qingchen completely and ignored him. They stripped him of his heirship and handed it to his younger brother. On the same day, four great clans broke off their engagements with him, while the imperial family revoked his honors and status. He was like a stray dog, mocked by everyone! Just then, Chen Qingchen finally awakened the Bloodthirsty System. Every time he killed someone, he grew stronger. From that day on, the world lost a prodigy and gained a blood demon. From then on, he grew stronger and became invincible, leaving Dayun far behind. But he never expected his former parents, the Chen family, the fiancée who had broken off their engagement, and the people of Dayun to all beg him to return. Chen Qingchen sneered. “When I came back then, everyone cursed me. Now you want me to return?” “Sorry, but as a mad killer, I simply have to come back. But I'm not here to help Dayun. I'm here to slaughter it.” “When I returned, everyone cursed me. When I leave, the whole nation will wail. Heh heh heh...”