Tsuma Ni Damatte Sokubaikai Ni Ikun Ja Nakatta Game ((link)) -

Kenji had always been a careful man. He balanced his checkbook to the yen, never stayed out past nine without calling, and had long ago surrendered his credit card statements to his wife, Yuki, for "routine auditing." She wasn't controlling—just efficient. Their marriage ran like a well-oiled machine.

"Sixty from the back."

"Seventy."

Kenji opened his mouth. No sound came.

(“It wasn’t a game where I went to a black market auction without telling my wife.”) Title: The Silent Bid tsuma ni damatte sokubaikai ni ikun ja nakatta game