Saw this in /vt/, establishing a timeline of Enna tweets with what's happening on Doki's suspension. Seeing this, I am convinced about the Elira is a manager and Enna and Millie are her assistants RRAT. Enna likes to throw some shade in her twitter posts so I won't be surprised if she did this because she can't contain her emotions about Doki not coming back from streaming soon. She might've had a lil' chubby when she learned Doki did a backflip but failed.
I really, really wish someone would just leak everything about what's happening in Niji. This RRAT is just waiting to be unleashed.
Also, Reimu might not be so innocent from all of this if she really did shade Doki with this tweet.