Nearsighted incest - When my wife's glasses were broken...

Shiho marries her husband, Takeshi, and now lives with her father-in-law, Mitsuru. Mitsuru warmly welcomes Shiho, saying that her male-only household has flourished. One day, Shiho, who is extremely nearsighted, accidentally breaks her glasses. Immediately after that, Shiho visits the bathroom after hearing a noise coming from somewhere. She assumes that her husband is taking a bath and begins to take off his clothes, but it is Mitsuru who is there... Mitsuru couldn't hide her surprise at the sudden turn of events, but from that day on, he began playing with Shiho's body, pretending to be her husband...