Realising he couldn't win, Boruto teleported back to Sasuke's tree after his attempt to fight Claw Grime victims which wasn't his initial plan. There, he was approached by Koji, who chastised Boruto for his recklessness before they began planning their next move.

As Boruto leaned against the tree where Sasuke was trapped by a Claw Grime - in a explanation, these Grimes bite anyone with chakra whom they are close to and, when that happens, they start turning into a Divine Tree. This miniature Divine Tree then locks the target in completely, stripping them of their chakra, and absorbing their powers. That unfortunately is what happened to Sasuke

He really wasn't in the mood to talk, so Boruto decided to keep quiet and listen to Koji as he spoke - eventually still mentioning Boruto's recklessness to his annoyance

Koji: As he was trying to think what their next move should be, he let out a sigh "You should be less reckless next time."