Irina, a poor earl’s daughter, is secretly working temp jobs at noble households to support her family. One day, a marriage proposal arrives! While she has resigned herself to the idea of marrying for her family's sake, there’s one thing she can’t give up: being useful to her childhood idol and “god-like” figure—the next Duke, Michael.

Believing that marriage would keep her from helping him, Irina sets out to work at his estate—without realizing he’s actually her fiancé!

Based on the popular Iris Bunko light novel series, this romantic comedy tells the story of a girl who unknowingly works at her fiancé’s home, and a frustrated young duke who can't seem to win over the woman he's already engaged to!