Age: 11–12
Blood type: AB

Hiro, the sheep of the zodiac, is a very intelligent but verbally aggressive and smart-mouthed sophist. He is in love with Kisa, and resents Tohru because she unwittingly monopolizes Kisa's time and attention. He starts out hostile to Tohru, but eventually eases his initial attitude through a combination of grudging admiration for Tohru and Kisa telling him to let up. He is sarcastic and pessimistic.

(Source: Wikipedia)