The incident in Oroko Valley refers to the tragic death of Soruen Wakaosa. Soruen, held prisoner, alone and surrounded by thousands of Kutou solders and desperately hoping that Rimudo will not come, fights. Fights to distract them, fights to honour his father, Rimudo, and himself, fights to take down as many of those soldiers as he can. By the time Rimudo realises what has happened, it's too late, Soruen has sustained fatal injuries. Soruen then ignites his armour laced with gun-powder, and takes his own life, destroying his entire body in the process.