Harlem is Balei's Kommo-o, she sees her as a sister, she's very caring in a tough love kinda way, the type where she'd get mad at her for staying up late and not getting enough sleep

Fausto's Tyrantrum (Anthem) however sees Fausto as an equal, a sorta rival to him, in the future he does learn to respect Fausto and not just do his own thing