After dozens of flashbacks, a specific number of demon lieutenants, and what feels like 12-24 contained occurrences later, you stand before the great Devilion Castle. The seat of the Demon Queen, it is the cold stone heart of the Demon Realm. Inside will undoubtably be Gryall Nightshadowa herself.

You are unseen for the moment, standing at an obscure portion of the citadel's massive dark-stone walls. Over the imposing barrier you can see dark spires stabbing up at the murky skies of the Demon Realm. You're a seasoned anime veteran now, so getting inside shouldn't be a problem, dealing with Gryall will be the hard part. She shouldn't have very many powerful subordinates left over from your many epic victories against her minions. But she'll still kick your ass if you're not careful.