Tetsuya is the one with the brown hair^^. Tetsuya and Seiji are best friends. but there both not that like her look. Tetsu is a very badb person and likes to kill and the dark seiji is a silent guy. seiji is deaf on this left ear. so he use a little hearing aid to use it as a sensor. no one knew it only tetsuya. tetsu love it to protect seiji but seiji is a bit ashamed about it because he look weak with it. they both are like "samurais"