The female protagonist accidentally entered the ghost market and accidentally obtained the so-called "pass" to the underworld. When the male protagonist took her to the underworld, she unexpectedly discovered that she had known the male protagonist before, and then unexpectedly discovered that she seemed to be missing a piece of memory. Then, while the two of them were evading pursuit, they unexpectedly fell in love with the male protagonist...
If this is the way to find you, I will not get lost.
Motto: Only by facing difficulties can we overcome them