The Invincible Little Demon

To keep her son Su Muyun away from power struggles and bloody massacres, the empress of the Cangxuan Empire had him raised by the Su family from an early age. But in the end, he could not escape disaster. Years later, the Su family was slaughtered to the last, and Su Muyun was lucky to survive. His grandfather, a guardian of the Dao, sent him to Fushou Village, but even there, he could not escape the relentless pursuit that shadowed his every step. When Su Muyun was twelve, his grandfather blew himself up to save him. From then on, Su Muyun embarked on a long journey to save his mother and exact his revenge. [No System + no harem + passionate and thrilling + decisive and ruthless]