Directly imported from the Reddit thread: LINK HERE

The reason as to why Rover erased their memories, and the potential endgoal of Wuthering Waves' story

Yaho! How has everyone's 1.3 been? I've been having a ton of fun theorycrafting and lorediving thanks to all of the information the game has given us. Rover's identity and reason for memory loss has been put into contention since 1.0 as "muh self-insert" and "lazy writing", but now thanks to Shorekeeper's bio, a few documents as well as supplementary material from CBT, we finally have a slightly clearer picture as to what Rover did, why they did it, and what would be the endgoal of Wuthering Waves.

Special thanks to the guys and girls on the lore-discussion channel on the official Wuthering Waves Discord for helping me digest this information through dialogue.

For obvious reasons, this post contains MASSIVE MASSIVE spoilers for 1.3, so if you haven't finished it, go finish it. If you finished it but skipped through everything, then... well, you can go read anyway. Hopefully my ramblings can convince you to pay more attention next time. Or not. Who knows!

In 1.3, a few things can finally be hypothesized to have credence:

  1. Rover is an existence that spans hundreds of thousands of years, and they MIGHT be an artificial being, the same as Shorekeeper. This is because we know Shorekeeper’s real designation to be “Instance Two”. Thus, we can probably assume that "Instance One" and "Instance Two" are creations in an attempt to answer the question on "How to defeat the Lament."

Image 1: Resolution K626, Modulation Hall, Tethys' Deep, The Black Shores

  1. Through the events of 1.1 we know that Rover has power over time, or the power to resonate with the world that manifests in Solaris-3 as time. This is due to their ability to resonate with Jue, a Tacet Discord that has power over time as well. In the document "Resolution K626" (Modulation Hall), if we assume that "Instance One" is Rover, this lines up with what we already know about them.

2a. To give [2] credence, Rover has also interacted and worked with the Court of Savantae to develop the Chronosorters and the Activated Chrono Sign, furthering the credibility of this claim.

Image 2: Activated Chrono Sign, from a world quest in Mt. Firmament

  1. “Instance One” might be born and has been active for an unspecified amount of time before the need for “Instance Two” has arisen, considering Shorekeeper’s purpose was because Rover and Tethys have determined that they need a middleman to interpret the Lament, as Tethys is unable to understand human emotion.

Image 3: Shorekeeper's profile, Experience, Beyond the Value of Life, Intimacy 2 Unlock

  1. Rover, Shorekeeper and by extension, the Black Shores, have been fighting the Lament since it’s first happenings. This means that the scale of WuWa’s story takes place over the span of at least 10,000 years; at least the relevant parts that we care about.

Image 4: To the Shore's End, confrontation against Tethys, version 1.3

5. Past Rover might not believe that fate can be changed and that the future is predetermined. Whether they genuinely believe this because of everything they have been through these past 10,000 years, or if this is just the musing of a despairing character in their moment of weakness, we are unable to give any concrete reasoning.