Full of Old Deeds

The ancestors of the Gu family made an old contract: when the daughter of the family comes of age, she must work all her life to repay the life-saving grain she exchanged for during the famine until the grain storehouse is full. Years later, the granary has been full more than once, but this deed is still passed down from generation to generation. Gu Wanhe pressed the fingerprints with his own hands seven years ago, and now it is his sister Gu Nianhe's turn. As her coming-of-age ceremony approaches, she discovers the word "mancang" in the old deed that has been ignored by everyone, and also uncovers the truth about her mother, Shen Guixiang, who was pushed down the same path by fate. Should he abide by the rules left by his ancestors, or carve a way out for his sister? On the day of the ancestral hall, Gu Wanhe did not destroy the deed. She just crossed out her sister's name and wrote her own name in front of everyone.