nUsato gets his first taste of battle after surviving the hellish training of the rescue team! Making the most of his newfound abilites, Usato aids the injured and heals the wounded, but danger lies just around the corner for his friends, Suzune and Kazuki! nThe two heroes find themselves face to face with the Demon Lord armys black knight, a foe equipped with a terrifying, ominous suit of dark armor thats seemingly impenetrable to any and all attacks. When their efforts amount to nothing, Suzune and Kazuki are left with their backs against the wall--the black knights blade getting ever closer. nTo save his friends, Usato will have to make healing magic his weapon and use it the wrong way to topple this ostensibly invincible foe.