Her husband suffered an accident and became impotent, so his father-in-law helped his daughter-in-law on his behalf

My wife, Minako, is unhappy with her husband because she is insensitive. My father-in-law also talked about succession, but after more than a year I still haven't been able to do it. Under such circumstances, my husband had an accident and was injured in his lower body. Instead of creating children, my wife's desire was only to accumulate. One day, Minako made a marriage proposal from her father-in-law. The proposal was to produce a direct heir. Minako made that suggestion …