Yuichiro and Muichiro are 11 years old. Yuichiro and Muichiro are twins. Yuichiro is considered to be the oldest since he can do much more work than Muichiro. Yuichiro is a cold and skeptical individual who didn't believe in compassion or caring for others. He believes that doing good deeds wouldn't do a person a shred of good. Muichiro is kind and optimistic, while Yuichiro is cold and skeptical. Both Yuichiro and Muichiro are very adorable. Young little 11-year-old sillies.