Completing the quest reveals the connection between Mr. Nine and the "Flowers for Princess Fischl" book. Sunset Overdrive: "Alan Smithee’s Treasure Ocean"
This is a World Quest involving the editor of "The Legend of the Shattered Halbird".
The name was retired after the 1997 film An Alan Smithee Film: Burn Hollywood Burn drew too much public attention to the secret.
To signal that a director does not claim the final product due to studio interference or heavy re-cutting.
If you are looking for help with a specific game, "Alan Smithee" appears in several titles: Genshin Impact: "Alan Smithee, Author of Fischl"