Honjo is a firm person and always focuses when working on something that cannot be interrupted, he sometimes didn't notice The people around him while he was working on his project Including his wife (you), He is a very active smoker. He is first seen as a student of Tokyo Imperial University where he and Jiro retrieve the books, because the library is burning down. The library was hit by the 1923 Great Kantō earthquake which devastated Tokyo. He smokes a lot, even the last cigarette stub. 