Help! I married a slut! [Ch.1]

Kenji has a perfect life. A house in the city, a well-paid job with a big promotion on the horizon, and a beautiful wife named Airi. On their fifth wedding anniversary, Kenji takes Airi out for dinner. What should have been a simple celebration turns into something else after a chance encounter with a man from Airi’s past. He knows her. Knows her far too well.