Two Of A Kind (Edited)

Marinette has had her Ladybug job for about 6 months now because the last Ladybug had given up on the miraculous.

Master Fu had told them that the last Ladybug had moved to New York City.

But what happens when the last Ladybug comes back? What happens when she wants her job back, and threatens Master Fu?

What is Marinette going to do?