One day has passed since Tsuna and his friends had returned to the past and they still have yet to receive a trial. Reborn says he doesn't know what order the Arcobaleno will appear. Tsuna suggests they should go to school and do as they would usually do. However, during recess they are suddenly attacked on the roof! It is a baby with goggles. It’s Lal Mirch. Lal says that she is the observer to the Arcobaleno Trials. Their first opponent is Colonnello, who has a blue pacifier. Colonnello begins Tsuna and Gokudera's trial to test their combat abilities--!