well, episode 25 was disappointing, they could remove OP & ED song, the ancient GAA magics (the weird animation about familiar -like existence), and George x Masaki bromance scene, instead of that actually they really need to explain cocytus better, and of course the regrowth scene, cause it wasn't as perfect as I expected, seems lack of tensions. It's just look like Miyuki's Onii-sama subarashii moment again and again no matter how many times I rewatched that scene.