I need to know what these two talk about that isn't Arknights... It's been over a year and I still don't know what the relationship between these two are. As far as I can remember, there's been no relays, no collabs and the only communication has been chat and twitter. Then again, Ranze always mentions friends in her stories... but that could be anybody since she doesn't always mention specific timing.
https://twitter.com/SMeu_channel/status/1848959831077728430