[Machine Translation] A horde of ugly demons attacked the "meeting of the clan leaders". The overwhelming power of Koi Yamashiro, the leader of the Demon Protection Squad, is revealed! Yuuki cannot hide his surprise at Koi's strength, but she takes a strange liking to him...? Furthermore, the eight Thunder Gods also make their move, and the Magic Defense Force conducts a joint training to strengthen their cooperation. With the loan of "Chain of Immortality," Yuuki gains a new master...?