Nazuna Takanashi

小鳥遊 なずな

Age: 12 Height: 170 cm (season 1); 172 cm (season 2) Nazuna is Souta's younger sister. She is very mature for her age and is already almost as tall as Souta even though she is only in elementary school. She is often the only support Souta has in the Takanashi household.