A husband and wife who live in harmony with Aoi, a mother-in-law with huge breasts. However, the son-in-law secretly cared about Aoi's huge breasts and wanted to make it a thing if she had a chance. One day, Aoi destroys important memories of her husband and wife. Aoi confesses to her son-in-law and asks for her forgiveness, "I will do anything ...". However, her son-in-law plans to use her debt of Aoi to play with her plump body.
