Excellent timing. I just got back.

I spoke to the One Who Has Come about us working together and he has agreed, so I will lend you my aid.

The deeper we venture into the castle, the more dangerous it will get. I'll look bad if I send someone incompetent, no offense, so I have to test your skills first. Plus, I don't want you to get hurt.

So, do you accept my test?

Good answer.

This should be fairly easy. Please bring me 50 #t04000344#s, which drop off the Kunoichi.

When you have them, deliver them to the Falcon Trainer. He's been asking for them for a while, but I haven't quite catch up with him myself.

Oh, come on. Be brave!

Ah, I sense that you bring with you something... magnificent!

Indeed, you carry with you #t04000344#s. I can tell.

Nagare must have sent you. Poor soul. I know he's tried to deliver these to me a few times already, but I never stay in one place for long.

So! You are working with Nagare at the behest of the lady Aoi? And by delivering the #t04000344#s, you have passed Nagare's test. Yes, I know all. I have eyes everywhere. And I find you more than capable for this job.

As for what's going on in the castle... Let's just say I've... ordered an investigation.
(He and his falcon share a knowing look.)
Anyway, stay patient and keep training. I will contact you when they return with news.