Mono and I are working on a small collab to bring in Celica. You could respond to that. Or join the collab.

Edit: There's a post. Celica and Alice are waiting in one of the 'train stations'. Mana could show up if she wants to, though for the most part there's only conversation going on for now, and one that might not be too interesting for her at that. Though I suppose magic in modern weapons could be a 'technology' she might find intriguing.