Name: Hitachiin Isamu (Hikaru's son)
Age: 17
Grade: 11, Senior High
Appearance:

Personality: Wild, rough, and a bit of a nutcase, Isamu is every bit his father's son. Isamu enjoys basketball and various other sports. He's a bit of a womanizer - just like his father before him - although no-one's really caught his fancy so far. He can be protective of those he cares about, and friendly to all else, and he strikes one as an easy going, albeit devil-may-care kind of boy. Nonetheless, Isamu does his best to excel in his studies. He enjoys pushing boundaries and breaking rules. He has some - though not many - close friends who he cares about deeply. Isamu can seem a bit cold to those who bore him.
Background: The only child of Hikaru Hitachiin and Aiko Kazuki. He grew up a bit of a rebel, not willing to fit into the constraints of his world. Has an eye for fashion, thanks to his grandmother, as well as a good business mind thanks to his father's friend, Kyouya Ootori. Studies hard in secret, is tutored by his mother and Haruhi Suou.
Name: Suou Suzume
Age: 14 (youngest)
Grade: 9, Junior High
Appearance:

Grade: 9, Junior High
Appearance:
Personality: Sweet, a little timid, gentle and soft-spoken, Suzume is Tamaki and Haruhi's youngest child. She loves her music and art, and thus has a flair for creativity. However, being slightly dizzy and one-minded, this means that while she excels in those two subjects, she falls behind drastically in the others. Kind and open, Suzume is on good terms with most of her school mates. However she is a little insecure of the image she has to live up to - both her father's and her older brothers.
Background: Youngest daughter of Tamaki Suou and Haruhi Fujioka. Inherited her dizzy, cosplaying ways from her father, and her down-to-earth nature from her mother. Adores her big brother, although doesn't love him in the possesive way some other girls do. Has a frail body from a bad pregnancy and while she doesn't suffer from any illness, is often sick or injuring herself - the common cold can bring her down for weeks. Does her best to keep all she cares about safe and sound.