Lin Du, a modern emotional blogger who angered herself to death, transmigrates into the frail thirteen-year-old body of a girl in a cultivation novel, given only one day to live by a congenital heart deficiency. The Save the Love-Brain System appears and explains that the cultivation world's Book of Fate has been corrupted by numerous love-struck individuals trapped in toxic relationships. To extend her life, Lin Du must sever these harmful karmic bonds, earning life-extending pills as rewards. The first target is Du Shao, a kind woman whose prewritten fate is to abandon a major sect opportunity to follow her fiancé Li Dong to a minor sect, only to be abandoned after he curries favor with a sect leader's daughter for a Foundation Establishment Pill, then be bullied and die a failed cultivator in obscurity.The story opens during the Central Continent Sect Grand Selection, where crowds gather at the green mountains. Lin Du is pushed into the spirit root testing line. Her pale, slender hand activates the Five Elements spirit sensing device, which spins and bursts into light, revealing a full-value pure ice spiritual root at bone age thirteen, an extremely rare and excellent aptitude. The examiner announces her attributes and gives her a wood talisman, directing her to ascend to the mountain summit. Her weak body struggles, and she collapses on the stone steps, lips purple from lack of oxygen. There she overhears Du Shao and Li Dong debating: Li Dong emotionally manipulates Du Shao into giving up her chance at a major sect to follow him. Lin Du interjects, suggesting Li Dong swear a Heaven and Earth Oath if he truly loves her. The man avoids it, exposing his insincerity. This intervention advances the system's first mission to fifty percent, and Lin Du receives a Qi Nourishing and Depression Relieving Pill. She swallows it dry, and the medicine clears her lungs, allowing her to spontaneously absorb spiritual energy and reach the early Fengchu Realm, an unprecedented feat for a mortal. She spits out old stagnant blood. Her health slightly improves, and she continues the ascent with Du Shao.At the summit, they enter a vast Bagua plaza where numerous sects from the Three Sects, Six Factions, and Ten Gates have set up recruitment platforms. Lin Du is struck by the colorful silks and finery of the cultivators, a stark contrast to her simple green robe. Du Shao comforts her about humble origins. Unbeknownst to them, hidden in the clouds, elders from various sects observe Lin Du and debate her potential. They recognize her pure ice spiritual root but also note her congenital deficiencies, which would require enormous resources to heal. The Jishi Sect offers to cure her, the Supreme Sect claims her, and the demonic monk Wei Zhi tosses her a bag of spirit stones, joking that she is worth a thousand gold. Lin Du accepts them casually.Through the system, Lin Du learns the larger context: this cultivation world contains other major love-struck tragedies—the Eldest Senior Brother whose spiritual bones are dug out by his beloved, the Second Senior Sister who has her unborn child cut out to revive a white moon, the Junior Sister tricked by the Demon Lord into stealing sect treasures then abandoned, and the Master who is sacrificed to the Heavenly Dao after three thousand years of devotion. All these characters are destined for happy endings in the original novel, but their toxic affinities must be broken. Lin Du's ultimate goal is to complete all such missions, stabilize the Book of Fate, and prolong her own life. Drawing on the insight into human nature gained from her emotional blogging career, she begins her journey with Du Shao, using sharp logic to unravel emotional manipulation. The story starts with her first successful intervention, setting the foundation for her path of saving both others and herself in a world of complex relationships.