Reborn tells Tsuna and his guardians to assemble at Namimori Island for the next trial. When everyone reaches Namimori Island, the trial is revealed to be a battle of Tsuna's family against Reborn. Reborn knocks Tsuna unconscious and battles against Tsuna's guardians. While watching the trial, Lal Mirch recalls what had happened when the chosen seven to protect the Arcobaleno pacifiers met for the first time, and reveals that Reborn was the strongest of them. Tsuna regains consciousness after the defeat of his guardians and engages Reborn in battle. During the battle, Reborn reminisces on the day he became an Arcobaleno. Tsuna gains the advantage over Reborn, hesitates to use the X-Burner and is defeated. Reborn then announces Tsuna has failed his trial.
All episodes — Arcobaleno Trials Arc
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S5 E142The Strongest Seven
Jul 18, 200925 min
Back in the past, the 7 Arcobaleno are heading to Namimori to present Tsuna with their trials. Meanwhile, in the future, Irie is telling Tsuna and his friends the details before sending them to the past. He reveals that although months have
S5 E143Trial #1
Jul 25, 200925 min
The next day, Tsuna's class receives two transfer students, Monta Hariyama and Himeko Hariyama. During the break, Tsuna is attacked by Lal Mirch of their time period who reveals she will be the observer of the Arcobaleno trials. Colonnello
S5 E144The Arcobaleno Seals
Aug 1, 200925 min
Colonnello continues to overwhelm the two. He is defeated when Gokudera distracts Colonnello for Tsuna to use X-burner on him. Colonnello gives Tsuna the Arcobaleno Seal, which causes all the Vongola rings to glow simultaneously. Skull make
S5 E145Guardian Showdown! Cloud and Mist
Aug 8, 200925 min
Mukuro and Hibari continue their battle and Lal appears announcing this is the second trial. Skull calls his pet octopus to combat but Tsuna easily defeats it. Afterwards, he stops Hibari and Mukuro from battling each other and Lal announce
S5 E146Box Weapon Prototype
Aug 15, 200925 min
Tsuna, Yamamoto and Ryohei are called out to Namimori Middle School where they encounter Mammon, who reveals he has Kyoko hostage. Mammon begins Tsuna's trial with a set of riddles which leads them to various locations. The final riddle lea
S5 E147Catch the Wind
Aug 22, 200925 min
Tsuna returns home after completing the trial. The next day, Tsuna receives a letter from the Arcobaleno, Fong, who is also revealed to be I-pin's Martial Arts sensei. The letter tells Tsuna and his guardians to search for him around town.