The story is about Ruku Minatomachi, a 15 year old high school student from Yokohama. Her dream is to travel the world to eat delicious gourmet food. Upon being told by her parents that she's actually a high efficient, time traveling android, Ruku embarks on an adventure, traveling back to the Taishō-Era (1926) to search for her grandfather. She meets Demon upon her arrival and is whisked away to his domain.