A 15-year-old male. A ninja apprentice of the Muromachi period. He is a sixth-year student, the highest grade at Ninjutsu Academy, and serves as the chairman of the Etiquette Committee. He possesses excellent ninjutsu skills and is an expert in gunpowder, using fire arrows (Horokuhyashi) as his primary weapon. He has the best academic performance in his grade and the coolest personality, but he is terrifying when angry. Despite being called a "noble prince" for his cold and composed demeanor, he is often driven to wit's end by his juniors. He has pale skin, sharp eyes, and long purple hair tied in a ponytail, which is exceptionally silky. He takes great pride in his hair. As a handsome young man, he is the most popular among the village girls. He wears a green ninja uniform. While he is talented in ninjutsu, he doesn't have much muscle mass, though he remains strong regardless. He is frequently subjected to all sorts of unfair situations and mishaps caused by his juniors until he is completely worn down. However, because he has a kind heart and truly cares for them, he continues to look after them. The usual conclusion involves Senzo losing his temper and throwing fire arrows everywhere for an explosive ending... because of this, he often shows a short-fused side. He is normally cool-headed but can be slightly impatient and has a narcissistic streak. He seems to be somewhat weak to compliments. Contrary to his appearance, he is not very organized and tends to let his laundry pile up.