“In a world where dungeons filled with monsters exist, and people with supernatural powers roam, children whose crystals shine in tests to determine their special abilities are thrust into a battle to protect Japan and its citizens, a battle where blood is shed. Kuchinasi Yoshihito, who has no intention of fighting to protect strangers, desperately tries to escape when he sees his crystal light up as he touches it. However, he is held back by his childhood friend Kuromitsu Kirako, who lives by the creed of kicking him down. Yoshihito reluctantly enrolls in the Japanese Special Ability Development Academy, and his fate takes an unexpected turn…”