It tells a story of fate, identity, and forbidden resonance.After a mysterious accident, a 69-year-old man named Xia Cha wakes up in the body of his 20-year-old grandson, Xia Ze Fang. Living under a new skin, he navigates a youthful world with an old soul and ends up sharing a room with the enigmatic Ye Hai Yuan.As their lives intertwine, a fated bond unravels across generations and identities, bridging love, loss, and the weight of untold promises.(Source: MDL)~~ Adapted from the novel "Ling Hun Te Yueh Ting" (靈魂的約定) by Hsu Tzu (緒慈).