In the third century of the Divine Epoch, a calamity struck the sacred tree, causing heroes and shrine maidens to be summoned forth. The Sanshu Middle School Hero Society transformed into a flourishing collective of twenty‑seven members, all gathered together. Guided by Fu Inubozaki, whose unwavering sense of camaraderie shines brightly, she is determined to turn it into the everlasting legendary Udon Hero Society.
