Is Mi Ying's age four figures? Mi Ying's age is not four digits. Mi Ying is a character in Axis Powers Hetalia. Introduction: Age: 19 years old, height: 177cm, so age is double digits, not four. Mi Ying has a famous saying, "I am a hero who saves the world, and I will not admit any objection!" . Personality: Proactive, fast-breaking, strong sense of justice, energetic and extensive.