あなたはどこまで愚かなの is a quote from the beginning of episode 6
A much better place than this~Huh...Just how dumb can you get?Oh I know! It's the Bon-Odori Festival, right?The Box Witch was defeated by Homura.When it comes to Kamijou-kun, Sayaka-chan gets really scary...hyoihyoiHitomi!
Where are you going?