Nico, with an unsettling smile, brandished his sword, revealing a more menacing side of him. He expressed his fondness for being underground, a place he considered his favorite. This location holds significance as it also happens to be Jason's preferred setting, adding a layer of connection between the characters.
The mention of the underground symbolizes a place of darkness and depth, reflecting both Nico’s personality and the challenges the characters face. This shared preference hints at deeper ties among them, foreshadowing the complexity of their journey and the battles they must confront in the narrative.