Because Jiang Jiuli was absent from her son Fu Mingchu's upbringing, he was oppressed by his stepmother, Lin Roujia, and developed a dark personality before activating a doomsday device. Determined to change his fate, Jiang Jiuli uses her underworld pass to return to the time when her son is eighteen. Disguised as a transfer student at an elite academy, she stays by his side, protects him, resolves crises, and guides him toward goodness. When Lin Roujia forges DNA evidence and launches a smear campaign, Jiang Jiuli joins forces with her former underworld subordinates to expose the conspiracy in public and send her to prison. After father and son reconcile, a summons from the underworld arrives, and Jiang Jiuli disappears in a beam of light. She resolutely resigns from her divine position and enters reincarnation with her memories intact, hoping only to share a mother-son bond with her child again in her next life.