Haru to Gen: 70-sai, Hajimete Kosodate

Gen, a 70-year-old man who was estranged by his wife and daughter after a divorce many years ago. After his daughter's death, he has been entrusted to take care of his three-year-old granddaughter Haru. Having neglected his family in the past, Gen now faces the challenge of raising a child for the first time, along with its unexpected twists and turns.

(Source: Anime News Network)