Minato is Jun'ichi's younger sister. She is a year younger than him and attends the same school as him as a first year high school student. She is capable in all areas of house hold related work and is proud of it. She also has unique abilities, like listening to the ground to detect the presence of animals, as well as be able to communicate with them. She has feelings for Jun'ichi. She mentions that she was an adopted sister once, but later says it was a joke. The suggestion that Minato was adopted was never confirmed in the anime, but in the PC game she is related, and in the PS2 game she is not related to him.