ShiJiang, a man trapped in a 7-year-old's body with accelerated aging, faces a grim prognosis from a doctor. Determined to experience a normal life, he enrolls in elementary school with his dear friend, knowing his time is limited. After a fateful event, ShiJiang retreats to the eternal realm to halt his rapid growth. Armed with newfound knowledge, he embarks on a quest for immortality, aiming to transcend mortality and reclaim a semblance of a normal life.