With Midori and Matsuoka badly injured, both Star White and Toy Gun Gun have to compete in the semifinals without their leaders. Next team up that Toy Gun Gun will face off against is Agartha, the legendary "strongest team" Midori and Matsuzaka were once a part of. And team leader Shingen Gareki, with his unparalleled knowledge of survival games, is determined to stop Hotaru and the members of Toy Gun Gun in their tracks