He is a tall young boy with neck-length brown hair, and a fringe covering his right hand side eye. He has black eyes and also freckles on his cheeks.
Like his teammates, he is quite arrogant and very confident both in his strength and his intelligence, considering himself a notch above other trainees. He often voices fake concern for his unit's opponents.
- "Fumifumi" is written with 文 ("sentence, letter, mon") and 史 ("record, recording, history"), while "Saotome" (早乙女? ) literally means "young maiden".
- His voice actor, Ryōhei Arai, also voices Yotsuya.