Episode 143 of Katekyo Hitman Reborn! , titled serves as the kick-off to the anime-exclusive Arcobaleno Trials Arc . This episode bridges the gap between the Future Arc’s high-stakes action and a necessary training period for Tsuna and his Guardians in the past. Key Plot Summary
: Fans often point to the humorous dynamic between Lal and Colonnello, specifically their initial "clash" as transfer students where Lal quickly establishes dominance. Katekyo Hitman Reborn! Episode 143
: While discussing the trials on the school roof, Tsuna and his Guardians (Gokudera, Yamamoto, and Ryohei) are suddenly targeted by snipers. This unexpected ambush serves as the official signal that the trials have begun. Thematic Focus: "Extraordinary Ordinariness" Episode 143 of Katekyo Hitman Reborn