Just like in an erotic manga, you can hear the inner voices (sexual true thoughts) of young wives! Unlike when they were younger, the frequency of sex has drastically decreased recently, and these young wives are secretly frustrated... On the outside, they don't think about erotic things! They coolly go about their work and housework. But in reality, they are desperate to have sex! These true thoughts are swirling inside their hearts. What if they don't want anyone to know about this...?