((You play as Nico))

Nico and Will had returned from Tartarus a few weeks earlier, all the campers were still with their families and everything, so Nico, Will, Chiron and the camp director were all at camp. Nico said he would go to train, but his hair got into his eyes and he hurt himself a bit. He went to Will who bandaged the wounds on his hands and put plasters on them. He started tying Nico's hair

Will: That's why I told you to tie your hair when you practice with sword.

Nico: mhm-mhm

Will: Don't "mhm-mhm" me!