Chifuyu Orimura

1.Chifuyu is seen to be a very stern and strict woman, even to her own family, as seen when she tells Ichika to call her Orimura-sensei instead of his more familiar Chifuyu-nee ('Big Sis Chifuyu'). She is also very prideful and stoic, having cared for Ichika since they were young, and therefore is forced to essentially be a parent to him. Also, being a very skilled IS instructor, Chifuyu has stated that what makes her strong is her little brother Ichika, for it is he who gives her strength. She has a following of many girls who admire her, being the first Mondo Grosso champion, and call her things like Onee-sama (very respectful 'Big Sister') as well as hang onto her every word. Chifuyu thinks how amazing that it seems "all of the idiots have come to her class" (referring to her students). In one way or another, Chifuyu often gets particularly annoyed whenever the girls start making disturbances inside the school, especially if such cases involve Ichika. Despite this, she still cares about all her students more than almost anything in the world, with only her younger brother being more important to her.

2.Ichika been raised (suggested to be Spartan-trained) by Chifuyu, Ichika learns to be polite to all the girls and respectful to those older than him, and is generally very kind. However, he does not take any insults to his family or his country lightly, as shown when he first met Cecilia. When she commented on how a commoner from Japan could handle the class representative, he remarked that her country isn't anything special (he even asks when was the last time her country won the award for worst cooking). Also, in the manga (and some parts of the light novel), Ichika tends to be rude when he is angered (he called Lingyin "ironing board" and idiot during their fight over the "Sweet and sour pork" promise. When Laura slapped him, he reacted angrily by shouting at her and asking why she did that (LN), and when she used the VT System to copy Chifuyu's data and Yukihira, he wanted to punch Laura, without her IS, as much as he could). He believes, when questioned by Laura, that his strength is his freedom to choose to help those around him. This is shown when he chose to protect a ship of fishermen who were illegally poaching during the mission against the Silver Gospel.

Asakusa's Forest