APNS-288 Neighbor's young wife's hellish training, her womb is filled with other men's semen every day... Hirose Riona

Riona, the young wife, married a colleague from her OL days. They weren't rich enough to live in luxury, but they were leading a happy life with her kind husband. One day, the absurdity struck suddenly. Considering having children, they spent their savings and moved into a slightly larger apartment, but it turned out to be a hellish apartment with a yakuza office next door. Things took a turn for the worse when the yakuza started causing trouble, dragging the couple down into the depths of hell...