The Fourth Grandma of the Banker at the Gate of the Mansion

When traveling through time, I just want to live an ordinary life, farming and reading books all day long. But she never thought that she would have no choice but to marry in front of the mansion. As soon as the sedan chair entered the door, the groom died. As the fourth young lady of a big house, how will she spend the rest of her life? －－－－－－－－－－－－－－－－－－