All Manga, Character Designs and Logos are © to their respective copyright holders.
Erna Hardy is the daughter of a ruined noble family, and she's a fish out of water among the elites of Lechen's high society. But this country bumpkin makes a giant splash when her official debut is interrupted by Prince Björn Dniester, the kingdom's "Royal Poisonous Mushroom." Suddenly, Erna is the hot topic on everyone's lips, and Prince Björn decides that courting the young lady will help him thwart persistent reconciliation attempts from his pining ex-wife. It's not until Erna unwittingly finds herself becoming a pawn in the prince's toxic game that she realizes how he's earned himself such a venomous title. And despite her best attempts to steer clear of his royal mess, an innocent mistake leaves her indebted to the prince indefinitely. Now, she's at his mercy as she works to pay off her debt. But is this royal mushroom really as deadly as everyone says?
As the male lead's older sister, Edna Luschen Demirette is destined to die from the void virus, a dangerous disease with no cure. Fortunately, Edna discovers that the virus can be purified by touching Prince Carlen, a poor outcast with divine powers. But as simple as that sounds, Edna's plans to befriend him go awry when he mistakes her for an obsessive fan during their first meeting. Armed with nothing but her sharp wits, will Edna successfully persuade the cold prince and save herself?