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.
When you think about it, they're all
Immerhin sind sie alle
Si lo pienso,
todos ellos son parte del pasado.
Si lo pienso,
todos ellos son parte del pasado.
Pensando bem, eles são
todos de um passado distante.