"...Did you check what's in the folder?"

"No, I hadn't." She pulls it out. "Let's see, though..."

Looks like sketches and storyboards, mostly of various scenes and poses involving Sailor V and/ or Sailor U.

"Seems like it could belong to someone at the studio."

"Could just be a strange coincidence, then."

"Coincidences have been usually, uh, not, since I met Luna."

"We should be careful investigating, then, but I don't want to retreat, even if it's dangerous."

"I'm sure the three of us can it, whatever it is."

"That's the spirit." In through the front door?

Best way to do it.

Is there a receptionist or something?

Yes, a middle-aged lady at a small desk off to the side. 

Great. She'll go over.

"Hello, I think I found a folder that belongs to someone who works here?"

The woman looks up. "Oh, hello. Can I see it?"

"Sure." Erika holds it out for inspection.

She looks at the name, then picks up her phone. "Hello, Matsuno-san... Yes, some girls are here, they say they found a folder, it has your name on it – okay."

And one of the doors opens a moment later. The woman who bumped into Erika earlier steps out, a deep frown on her face. There's an ominous aura around her. She walks up to the desk. "Where did you get that?"

"Ah... You dropped it earlier. I came to return it."

The woman grabs the folder, opens her mouth – then stops and takes a deep breath. "Sorry," she says, tightly. "I've been in a bad mood lately. Thank you for bringing this."