|Arc||The Curse of the Rainbow Arc|
|Volume||Mystery of the Rainbow Arrives|
Those Who Watch The Battle
The Fated Day and the Representative War
Tsuna understands Reborn and both he and Jaque start to fight at full power. Tsuna clashes with Jaque using his Mitena di Vongola Primo. Verde and Reborn talks about how Tsuna's boss watch is going to get destroyed. Jaque thinks that Tsuna disappeared, but Tsuna was actually going around outside in the same direction as Jaque's whirlwind. Mukuro, Reborn, and M.M. talk about Tsuna's direction and speed. Tsuna hopes the boss watch won't break and attacks with his Mitena di Vongola Primo while Jaque is spinning. Verde notices blood from Jaque and the audience celebrates Tsuna's win. Reborn shows the test again and says that he wants Tsuna's test scores to improve like his battle with Jaque. M.M. can't believe that Tsuna is the same person because he can fight really well but still get terrible grades.
Bermuda and Jager appear in the battlefield. Bermuda says that he was shocked at the result. Jager says that Tsuna has grown to be a lot like Giotto. Bermuda comes because he wants to invite Reborn onto the team. Reborn rejects the offer. Bermuda creates a warp hole that sucks Reborn in. Tsuna, wanting to save Reborn, is sucked in as well. They both arrive in a place with skeletons on the floor. Reborn says that he let himself get sucked because he wanted to know what Bermuda meant about "the truth." Looking up, Reborn and Tsuna see a stone revealing the secrets of the Arcobaleno.