Takara, the sole heir to the Metallum Clan and the only fairy not abiding by the Ten Laws, establishes a connection with Ruise, whose injured father owns a grocery shop and is currently in debt. Ruise's malnourished condition reminds Takara of how he and his mother used to survive while escaping from his clan's power struggle, and he hires her at Bar F. Ruise is forced to quit after being harassed by her debt collector, but her debt collector propositions her to become a mail-order bride to a wealthy man willing to pay off all her expenses...