Aoharu x Machinegun, 13

The Hoshishiro, the TGC winning team for the fifth year in a row, are getting ready to play the first round!! On a field of play that leads the opponent, Midori shows surprising ability. Meanwhile, Yukimura of the Toy Gun Gun, about to start the second round, has a thought that haunts him: "Why do Mattsun and Midori continue to use the weapons they used in the past? Will they ever play together again?!?". Doubting him will have fatal consequences...