But you still wanna be a researcher?

It's the nature of a scientist.

There's another door, but there's no way in.

No entry except for staff.

We were employed by Kushiro-sensei, so we're staff, aren't we?

...Before you start talking down to me,

Moreover, it says "No entry except for staff."

I have one more card.

take a look below.

When there's a mystery, you wanna solve it by any means necessary.

Besides...