After her sister's royal engagement falls apart, Lady Francette's life takes a tragic turn as her family loses everything. Determined and name alone, she starts anew in the slums selling pastries. Here, she befriends the peculiar talking slime, Wibble, who leads her to the enigmatic slime duke, Gabriel. Surprisingly, Gabriel proposes to Francette, and she agrees. Settling in Triste among its unique inhabitants, Francette breathes vitality into the quirky town. Their initially pragmatic union blossoms into something deeper over time, with plenty of slime-filled adventures along the way.