This show always keeps me wondering if it has some deeper message or if it's just nonsense. I'm starting to believe that it's nonsense, but the nonsense is the message. Like it's a hommage to anime that may have bad writing full of holes and tropes, and is loved despite that. The badness is part of the experience so to speak.

So such plot inconsistencies (like also Blue's and Pink's vials with the drug being intact again despite them already opening it in the previous episode) may just be on purpose.