It was an unmistakably grand mansion, so normal no one would have expected it to be the Estraneo's Base, in which they conduct all those underground experiments.

  "Hayato, let's split up. You keep them busy while I deal with Akuhei." Tsuna ordered. "Leave it to me, Tenth!" Hayato took out his dynamites.

  "Wait Hayat-!!!" Tsuna tried to stop him but the dynamites were lit. Thrown at the door, blasted away, alarm beeping, people rushing.

Tsuna facepalmed.

  "Were you saying something, Tenth?" Hayato turned around innocently. Tsuna sighed. "Nothing. I'll leave this place to you."

  "Yes, Boss!!"

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

  Tsuna flew up to the roof, hoping to find a way inside without having too much trouble, only to find luck on his side.

"I knew you'd come here, Sawada Tsunayoshi..."

It was Akuhei.

"...or should I say Vongola Decimo?"

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

  "Well, we don't have much time now, considering Primo and the others might be arriving anytime soon because of the commotion." Tsuna released Natsu and got ready to fight.

  Akuhei drew his guns. "Agree."

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

  Hayato was busy making everything explode while Uri was busy scratching his face. "Uri stop that!! I'll give you catnip so quit it!! Can't you see I'm busy???"

  Hayato finally gave up and shouted, "Uri, Cambio Forma!!"

  "G's Archery."

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

  "Natsu, Cambio Forma." Tsuna said.

"Primo's Gauntlet."

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

  Hayato and Tsuna were so occupied in fighting, they forgot that the Primo were on their way.

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Hayato was dealing with more people by the second. "tch."

He released Uri.

"Buckle of the Storm Version X."

Uri went into the Vongola Gear.

"Uri. Cambio Forma."

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

"Natsu."

Tsuna had realeased Natsu as well.

"Ring of the Sky Version X."

Natsu went into the Ring.

"Natsu. Cambio Forma."

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

"It's about time we took things seriously." they said at the same time.