After an explanation of the mystery of the boxes and theories concerning them, Tsuna, Yamamoto, and Gokudera's training becomes standardized. Their training is difficult and they are exhausted every day. Of the three of them, Gokudera isn't doing very well. Day by day, he takes his own actions. Tsuna is worried that there's something wrong with him. Reborn tells him about Gokudera's past… Meanwhile, the Millefiore's Glo Xinia is headed to Japan.
I planned to tell you as soon
as I had solid proof.
Ich hatte vor, euch einzuweihen,
sobald die Beweislage es zuließ.
Mi plan era contárselo
cuando tuviera pruebas.
Mi plan era contároslo
cuando tuviera pruebas.
Assim que eu tivesse os fatos
estabelecidos, contaria para você.