Tamotsu Ishikame

Tamotsu is a foul-mouthed tough guy, raised on his grandfather's war stories. Sickly as a child, he idolised the tales of brave men and pushed far past his limits to emulate them. Despite numerous rejections from military academies, Tamotsu kept training himself as a soldier. Winning countless combat simulations and even recognized as the best airsoft player in Japan, his bitterness toward the establishment swelled. If the Imperial army didn't want him, he'd find his own way onto the battlefield.

[From official site]