A princess who has been taken hostage wants a kitchen! Sentei, the second princess of the small country of Piary, has memories of her past life. She was born in Japan, grew steadily old, and ended up peacefully in a hospital. Just when she wondered if she could live a peaceful life this time as well, she was asked by the large country of Ante to study abroad as a hostage. Under the kind watchful eyes of wonderful people much older than her, she begins her life as a reincarnated princess in the kitchen to turn her gray hostage life into a rainbow-colored slow life♪