Letter from a Grandchild

The foolish people who drove away my cute granddaughter are finally gone. Now I can welcome my wife and granddaughter without reservation. But... I've suddenly found myself with some time. That's right. For the sake of my wife who loves cleanliness, I should tidy up a little――. This is the story that came after the sister-in-law who takes everything belonging to her older sister, and the family that condones it, attempted to switch out the fiancée.