Machi Kuga is the younger sister of [Ichirou Kuga](https://anilist.co/character/272394/Ichirou-Kuga) and older sister of [Fumio Kuga](https://anilist.co/character/290701/Fumio-Kuga). She is an energetic child with a kind personality, often seen taking care of Fumio to allow Ichirou to focus on his work.
