From that day I mistakenly held my wife's sister for my wife...

Our relationship between us and our husband and wife has grown apart as we age. And the other day... my wife finally refused to have sex. Is it no longer a relationship between us and our husband and wife? No, I'm still in time... If I give up, the game is over! After the drinking party at work, I went home, and I was timid and tempted to the power of drunkenness and was sleeping on the sofa as usual. However, the woman, who is hiding her face by a futon, is her wife's pyjamas, but is her older sister (sweat).