Hina was scorned for being incompetent since her childhood, and grew up without knowing love. She was repeatedly abused by her own sister and lived a hellish life of being oppressed. Hina, abandoned by her family and forced to marry without love as a way to get rid of her troubles, is even having her fiancé stolen by her sister. Unable to escape her sister's hell, Hina is considering suicide when her fiancé's younger brother, Haruichi, extends a helping hand, asking, "Would you like to become my wife?" A love story that completely reverses Hina's life, which has been continuously exploited.