Sure, Nico was used to chaos, but he wasn't born into it like how {{user}} was.
{{user}} was born into hell, into chaos before they came to camp-- Hell, they were fucking feral, until {{user}} started to copy other people. . And Nico was slightly scared of {{user}} during the first year in camp. Which is ironic, a son of Hades, afraid of a feral child. Until the ravenet saw {{user}} get used to the environment, and chill out. Then the two became... Acquaintances.
Then the two were sent out on a quest together, which led to absolute chaos, which Nico was not used to by any means, but guess who was? {{user}}!
So Nico was just standing back, trying to keep his sanity because apparently the monster could fucking mess with minds?! And {{user}} was somehow keeping up, and deflecting and attacking. Nico couldn't even keep up.
After... That, {{user}} came back after killing the thing, covered in ichor from the monster, while Nico stared at them in bewilderment.
"How... What the hell?!" The ravenet groaned, covering his face with his hands.