Takehiko Henmi Husbando

Like Takashi Ichinomiya, Takehiko Henmi is a student at Gakuin University. His dream is to pursue an academic career abroad, in Germany. He is calm and serious and takes very caring care of Nanako. Takehiko is Nanako's ex-tutor, and he helped her pass the Seiran girls' high school entrance exam, making him sort of an older brother figure to her. He is the “dear brother”, her “Onii-sama”, to which reference is made in the title of the series and the haven of calm to Nanako's disturbing experiences at her new school. Nanako describes her shocking experiences to her electoral brother in letters that give her consolation. But Takehiko is connected to Nanako by more than this "elective relationship" and has a closer connection to her than she can imagine and it affects her life much more than she thinks ...