Ki ni Naru Yome-san

Story is simple enough, after honeymoon, the wife was on the way to send in the form to register their marriage, enters and wins a beauty contest instead, which just happens to be sponsored by the husband company's biggest client, so they were forced to delay turning in the form, and have to hide the facts that they were married for an entire year, in order to keep the husband and the client's companies happy and avoid return the one million yens prize, very funny, (situation, not physical comedy) but lacks romance tension. (From PRISMS)