In the meantime, here is a general "literary" approach to an essay about two such characters: Essay Concept: "The Fluidity of Authority and Connection"

Summarize how their relationship redefines what it means to be a modern family, moving beyond labels into a deeper, more personal connection.

Explore how having a private world or a "shared" experience (whether it's a hobby, a secret, or a mutual goal) creates a unique bond that overrides traditional hierarchy.

Analyze how Olivia learns from Eden’s confidence, and how Eden finds a sense of purpose or belonging through Olivia’s acceptance.

Discuss how Eden defies traditional tropes. Instead of conflict, there is a burgeoning alliance or a shared secret that sets them apart from the rest of the family.