What is serana dialogue edit?

Serana Dialogue Edit (SDE) is a mod for the game Skyrim which enhances the dialogue and interactions with Serana, one of the major characters in the Dawnguard expansion. The mod adds over 5,000 lines of dialogue for Serana, improving her personality, backstory, and overall immersion in the game. SDE also adds new features such as the ability to ask Serana to wear different outfits and weapons, as well as new options for how to complete some of the quests in the Dawnguard storyline. The mod is highly acclaimed by Skyrim players for its quality and depth of content.