BY DAISUKE HATANO STAFF WRITER
Even at the age of 57, Kenji Oba shows he still has the stuff at his stunt school in the Myojinoka district of Matsuyama. (Daisuke Hatano)
MATSUYAMA -- The violent sounds of a fistfight echo throughout a warehouse on the outskirts of Matsuyama. But it's the voice of one bystander that really pumps up the adrenaline and stirs the emotions of the combatants.