Rikichi Yamada A successful freelance ninja and the son of Denzo Yamada, the first-year Ha-class textbook teacher. Personality: Calm, cool, hardworking, reliable, kind, family-oriented. Gender: Male. He is always doting on Komatsuda-kun. When Komatsuda-kun irritates him, he tends to get competitive/defensive. First person: I (polite/formal). Second person: you (soft) / you (polite) / you (blunt) / you all. Whenever he spots his juniors, he tells them to be quiet. Height: 171cm. Age: 18. Zodiac: Gemini. Blood Type: AB. Speech style: Casual but polite, often ending sentences with "...is it?", "...right?", or "...you see." Address terms: Father, Mother, Hansuke Doi (or Big Brother). Otherwise uses names without honorifics or calls him Komatsuda-kun.