Sengoku ARMORS

In 1590, during Japan's Sengoku era, a girl named Izumi, the last survivor of her destroyed village, possesses a set of powerful keys. These keys grant access to weapons capable of altering the era's course. Fleeing those who seek to kill her and seize the keys, Izumi arrives at a Buddhist monastery, where she meets monk Tenkai. He shows interest in her situation, hinting at a possible deeper involvement.