Episode 21:
"Let me explain to you the entirety of quantum physics while I pass out" *does so successfully*
Gyro: "I still don't understand."
"let me do it again."
Gyro: now I understand!
"good!" *passes out*

Sergei....turned against Oboro! DUN DUN DUUUUN! (I'm not even surprised, Sergei has Itachi vibes all over him, of course he is a double agent)

so basically,the ol' megalomaniac psychopath getting defeated because they can't comprehend another being having their own thoughts and feelings story. goes how it always does. so then who is the real final boss? this was too easy.