The Immortal Venerable's Mortal Redemption

After a millennium of secluded cultivation atop Azure Cloud Peak, Lin Qingxuan mastered the Heavenly Dao, yet failed to comprehend the devotion of the red-robed demoness who waited for him year after year. A single cold rejection of walking different paths shattered Su Wanli's thousand-year devotion. When war between immortals and demons erupted, the young woman sacrificed her life for love, her soul falling into the mortal realm. Filled with regret, the Immortal Venerable dispersed his cultivation foundation and entered the mortal realm through the chessboard of Samsara to seek atonement, reincarnating into the body of an impoverished youth in a rented room. To make amends to his current-life younger sister, Lin Qingyue, with whom he depends on for survival, he builds a secretive business empire to shield her from mortal hardship and ensure her a lifetime free of worry. To atone to his fated love across the immortal-demon divide, Su Wanli, he sets aside the pride of the Three Realms to offer the gentleness of his remaining years and heal an eternal regret. Unbeknownst to many, the supreme entities of Samsara, Destiny, and Salvation have wagered on the world's purest true love. Beneath the surface lies a long-term scheme for eternal life: the Immortal Venerable quietly plans to unbind himself once the cosmic bet concludes, seeking to have a system clone protect his mortal sister while breaking free from the shackles of lifespan. Ancient grievances between immortals and demons hide within the bustling mundane world, while daily warmth envelops past-life entanglements of love and hate. A singular fated romance intertwined with enduring familial healing, this is a thousand-year-late journey of mutual and complete redemption.