Miku getting a Symphogear and then being mind controlled into fighting Hibiki is one of the most emotionally brutal things the show has ever done and it works precisely because of how carefully the series has built their relationship. watching Hibiki refuse to fight back against the person she loves most while taking damage is gut-wrenching. the blast that eventually snaps Miku out of the mind control also curing Hibiki's condition simultaneously is the kind of narrative convenience that Symphogear earns through sheer emotional momentum rather than logical elegance — you're too relieved to question it. the episode is messy in places but the emotional core is devastating and completely earned.