Welcome to the Nathan Hotel――
The explorers' latest request brings them, by chance, to the very hotel where Aether and Martel are working.
It's a place full of strange guests, but the job seems simple enough: just deliver a package. Or so it should have been...

Behind the glamour of the casino, something strange begins to stir.
The delivered package has been mysteriously swapped, and the secrets hidden by seemingly unrelated people slowly start to come to light.

What happened to the package?
And what truth lies hidden within this hotel?

As schemes collide, the story takes an unforeseen turn...