열 살 외할아버지, 좀 치는데?

In 1976, Martin Prescott, a nine-time world Go champion, stumbles upon Rupert and Noel playing Go while gathering wild greens. He takes Noel’s place for one game, only to find 49 years have passed in the mortal world. Noel grants him a peach, turning him back into a ten-year-old boy. In 2025, he returns home in childlike form, facing obstruction from bodyguards, contempt from his son-in-law and bullying from his grandson. He proves his identity by solving an intricate Go game, revives his wife with the peach pit, and discovers hidden secrets behind his family’s crisis.