Description
Sora lives with his wife, Sayaka, her parents and Sayaka's older sister, Suzuka, a married woman.
One day while drinking, Suzuka seduces Sora.
The next day, Sora can't get Suzuka's voluptuous body out of his mind, alongside feelings of guilt and remorse.
However, Suzuka is not bothered by it at all, in fact she continues to boldly seduce Sora.
Sora, unable to resist and among midst feelings of guilt, gives in.