Appears to be in his early twenties/late teens. Shinji is outgoing and outspoken. He is stubborn, loyal and eager to learn as well.Being a Dragon he is quick to anger, and speaking of Dragons, he is only half. Half Dragon half Human or something with a human appearance. Maybe a Witch/Wizard. In anycase he is no bigger than a great dane. He may appear hot to the touch but he is actually cool.