Pip is still serving his punishment for the disastrous events of Integra’s birthday party.

Seras: I’ll train him better, Walter. I promise. And I’ll clean up the mess.

Walter: Yes, you will–

Alucard: I’m afraid she can’t do that.

Walter: Why not?

Alucard: We’re going on a hunt.

Walter: In that case, Captain, it’s up to you.

Pip: What?! This isn’t my fault!

Walter: No, but you’re still on probation. Now go get your apron.