I’ll accept your one condition.

Aidan Dalton worked hard, over the past seven years, to rise to the position of Head Servant under Duke Felix Berkeley. However, Aidan kept hidden the fact that she’s a woman and now finds it increasingly difficult to maintain her secret.

Just when she's determined to quit her job a terrible incident occurs, and when she comes to, she sees the beautiful aristocrat Lady Gloria Middleton in the mirror?! Also, Gloria happens to be a marriage candidate for Felix but...

Based on Original Webnovel by LEE Chae-yeong