The relationship between Star and Marco evolves from simple best friends to something more complicated.

The quirky mentor takes center stage, teaching Star that magic isn't just "shining armor" but something complex and neutral.

Star keeps Toffee’s severed finger in her closet, a physical reminder of the lingering threat.

Marco deals with his own identity, notably in episodes like "Running with Scissors," where he spends 16 years in another dimension.

Star begins to realize that being a princess involves actual responsibility and difficult choices.