Dame's quieter, more self-reflective side -- teased out in small moments in the film -- could even be seen as a parallel to the quiet bouts of self-doubt and depression that creep into Rocky's life throughout the franchise.

Source: https://www.cbr.com/jonathan-majors-donnie-rocky-connection-creed-3/

She joined the Demon Slayer Corps to try and find a place where she could belong and fully be herself, and around Nezuko, there's no pressure or self-reflective shame about her motives or for being less put-together than the other Pillars.

Source: https://www.cbr.com/demon-slayer-mitsuri-nezuko-female-role-model/