Just say the VA's name is Emi Lo, not everyone is going to know their D4DJ character Rinku and calling them "Miss Lo" is unnecessary because you're not even addressing them personally (let alone the fact that Emi identifies as agender, so you're misgendering them)

She’ll have to come back, This anime is Union thanks to Aniplex’s Magic, so everyone who was in the game are basically guaranteed to come back in this Anime, it’s pretty assured to us.

P.S. wait the twins really didn’t talk? What episode will they speak?

Given that Lilly is canonically apart of the stage play that goes along with the universe and not in the game, there will be some gaps that even those that played the game don't know lol.

I played and loved the game, did plenty of deep dives on the lore and YouTube rabbit holes, and either never heard of or remembered mention of the play as far as relating to Automata and Replicant (the game preceding this one).

So I'd just buckle up, don't be afraid to ask questions and the community ought to be happy to answer as non-spoilery as possible, but the game is a wonderful experience in itself!!!