Although short and easily overlooked, Tetsunosuke's ego more than makes up for his small stature. With a strong sense of justice, he lives to avenge the murder of his parents. Unfortunately, this often sees the young boy stumbling into trouble, with only his older brother there to bail him out. Tetsunosuke is also extremely naive, and this is usually used by others as a method to tease him. Despite the cruel behaviour by others, he is a determined and relentless boy who lives to avenge his families name.