About Ichiro Oogami and Iris Chateaubriand:
Ogami Ichirou is a bright, friendly, and enthusiastic 20-year old Japanese navy junior officer from Japan and Iris Chateaubriand, a cheerful, cute, fun-loving and energetic 10-year old girl from France. They are technically big brother and little sister. Ohgami Ichiro and Iris Chateaubriand have absolutely the most kawaii, sweetest relationship in Sakura Taisen, don't you agree? They are a perfect match made in heaven. First of all, Iris Chateaubriand sees Ogami Ichiro as a big brother since the first time they met each other and she has taken a liking to him because of his valor and daring gentlemanly qualities. What girl would not like Ogami for being such a great big brother? Shhe eventually became infatuated with Oogami so she asked him to go on a date with her. He was kind enough to take Iris' crush into consideration and knows how to fully respects her feelings. Oogami is the ideal big brother Iris wanted. Iris is the ideal little sister Ogami wanted.