Their brief spat did not interfere with their actions.
Obito tapped here and there on the barrier, using his Sharingan to find a weak spot, then pointed it out.
Kakashi placed a small object at the spot he had found and took half a step back.
Ripples spread across the barrier like ocean waves, opening a gap just large enough for one person to pass through.
"Come on out. This is a little gadget we 'borrowed' from Orochimaru's laboratory. It only works once."
Longjian Senju wasted no time and immediately slipped through.
Obito Uchiha held out a fist. Longjian understood and bumped it with his own.
Obito turned his wrist, and a familiar strip of white, bandage-like cloth appeared in his palm. It was the item for suppressing the Rinnegan that Longjian had lost before his capture.
"Thanks."
Longjian Senju took it and tied it over his eyes, returning to the appearance most familiar to Obito and his two companions.
"I never thought you'd actually find a way. Orochimaru has always been cautious. How did you manage it?"
His remark carried the same tone and cadence he had used back at the Ninja Academy.
Obito Uchiha scratched his head and grinned brightly.
"Him? He got dragged off to a meeting. Apparently, they've pinpointed Black Zetsu's general location, and now they're figuring out how to set up a barrier to force him out."
"Hmm... I see."
Longjian Senju rotated his wrists as he replied.
"Hehe... let's go! Now that we know you're back, there's no way we're leaving you stuck here. Want to take a look around Konoha?"
"Wait, Longjian. Have you broken free of Black Zetsu's control?"
Kakashi interrupted Obito's carefree invitation and stared into Longjian's eyes.
"The control I know about has been lifted, but I can't rule out