Yoichi Karasuma
A high school sophomore who is also a young swordsman and has moved away from his mountain life to live with the Ikarugas in the city. He is a very active person who actively enjoys martial arts and is very honorable. He is usually seen wearing a Japanese martial arts uniform and a wooden sword.
Ibuki Ikaruga
A high school sophomore who becomes a self-appointed head of the Ikaruga family. She becomes a maternal figure for the Ikaruga family since their parents went overseas at an early age. Although very loving and maternal she tends to be quite violent especially towards Yoichi.
Ayame Ikaruga
A freshman in high school, is Ibuki's younger sister. She has a shy, tsundere personality and is acutely aware of her small breasts when compared to those of her siblings. She is bad with household chores in general. She dislikes being compared to Ibuki as she is constantly overshadowed.
Chihaya Ikaruga
Chihaya is a 15-year-old, 3rd year junior high school student. She is the second youngest (and most sexually frank) of the Ikaruga family. She is also a professional cartoonist. She uses her siblings and Yoichi as a basis for her manga by manipulating the scenario's surrounding them for the best results.
Kagome Ikaruga
The youngest of the Ikaruga family and a an elementary school student. She is clumsy and does the washing up for the rest of the family. She has a shy personality and is very talented in cooking.