|Hayato Gokudera vs. Gamma|
| 獄寺 隼人 VS. γ|
Gokudera Hayato basasu Ganma
|Volume||Sistema C.A.I. Arrives!|
Sistema C.A.I. Part 2
Spanner explains how the contacts he made would help Tsuna's X-Burner. Giannini is against trusting a Millefiore technician, but Spanner assures him that the contacts are already being used as Box Weapons. Meanwhile, in another room in Merone Base, Gokudera and Gamma are having an intense battle. Gamma brings out Colulu & Widget and charges towards Gokudera. Gokudera loads his Sun Cartridge into his Flame Arrow and fires the Sun Flame-enhanced Storm bullets, but Gamma easily dodges them.
Suddenly, Gokudera traps Colulu and Widget in his Bone Loops, loads his Cloud Tube and fires a rapidly propagating mix of Storm and Cloud Flames. Gamma takes the full force of the attack and takes refuge behind a wall. He brings out an Update Box and has a flashback of receiving it. He remembers Genkishi giving it to him and saying that Yuni said that Gamma would understand the message that came with the box. Done with his flashback, Gamma looks at his box and makes a decision. Gokudera flies over to Gamma, but finds out that he's not there anymore. Suddenly, Gamma appears behind Gokudera, with Colulu and Widget now black foxes, and says that their match is over.