Personality: Seiji cares deeply for his twin. He always seem to do things that's best for his sister instead of him. He's usually doing the "right" thing such as doing all his work, trying hard to stay out of trouble, etc. Seiji is a gentle boy, who would rather read during his spare time instead of play video games. He doesnt like loud things, such as crazy rock bands, and is good at keeping calm during bad situations. Around strangers, he quiet, and the only time he seem to talk a lot is when he's with his twin.
History: [editing. since Seiji is a twin, i dont think i can make up the history on my own]