In a surprising turn of events, Akane Takanashi and her sister Hiyori are transported to an unknown realm along with their home and all its contents. Cain, the kingdom's second prince, informs them that they have been summoned to combat the miasma that emerges every few centuries. To add to the confusion, it is revealed that Hiyori possesses the ability to purify this malevolent force. While studying as a priestess, Hiyori expresses discomfort with the palace's cuisine and requests Akane to prepare her favorite homemade dishes once more. Grateful for the opportunity to assist her sister, Akane begins preparing unique meals each day using distinct ingredients, recipes, and flavors. The warm ambiance of their home attracts various individuals who come to partake in dinner or enjoy refreshments on the porch. As Akane becomes accustomed to this new environment and its inhabitants, new friendships begin to form.