The alien Wulgaru's previous attack on humanity was thwarted by the heroic actions of the genetically enhanced humans known as the Evolved Children in their advanced AHSMB battle armor, but now a new attack has been launched against Earth under an even deadlier champion, Diorna, created from the fusion of DNA from two Wulgaru Royals. Unfortunately, Izuru Hitachi, the captain of Team Rabbits that destroyed the Wulgaru Royal Jiart, is still out of commission and healing, so Toshikazu Asagi is left to marshal the Majestic Princes and halt Diorna. It's up to Asagi, together with the surviving members of Team Rabbits and the newly formed Team Fawn, to hold the line against the most merciless opponent yet.