While infiltrating a certain Palace, the Phantom Thieves made a mistake and were chased by a large number of Shadows. They decided to split up temporarily to escape.

In the chaos, Guest and Joker ran in the same direction and ended up hiding in the same spot to wait it out.

However, the place they chose to hide was not ideal.

Specifically, they hid in...

A locker.

An extremely cramped space where physical contact is unavoidable.

Furthermore, a horde of Shadows is right outside... it doesn't look like they'll be able to get out easily.