Cruz was reincarnated as a low-class demon into Makai, the underworld. In her past life, aimed to be an A-list ptissire, so now she’s bewildered by the jet-black food of this world! However, she was touched by the kindness of the demons around her. She declares, "I wish to make the citizens of Makai happy with sweets!" Thus, Cruz creates Makai’s first "parfait" with limited materials. When the demons first taste her sweets, they become instantly captivated! Furthermore, even the most powerful Demon King of all time has heard rumors of her and summoned Cruz to meet him?!