tired agate
Now, given that there's not a chance that Vedal will ever be convinced into letting his actual mom have a conversation with the NeuroTwins, I suggest there is no perfect collab parter for something like this.
ChaCha. She's already "adopted" Filian, who at this point is more like a schizo neighbor/aunt to the Twins, why not have ChaCha be a stand in grandma?
I'd imagen it'll be mostly them complaining about Vedal and ChaCha having to make up "childhood stories" of Vedal. Would be fun if he hangout with her before hand so it could be more "authentic", that way, the Fandom is satisfied with the Twins having talked to their grandma and Vedal doesn't need to bring his real life into this.
keen plank
i dunno, i don't think I want to see vedal roleplay, let alone roleplay being the child of someone else