IENE-308 Akane Moriyama, an 18-year-old girl who came to meet me for 40 years without her

A girl "Akane" was sitting with her mother in a room in an old mansion. It was a matchmaking table with a rich sergeant to manage the debt left by his dead father. The partner is a dull middle-aged man who has no girlfriend for 40 years. The days of continuing to overrun as if to be nasty ... Eventually, something awakens while sleeping in "Akane" ...