Those Who Hunt Elves

Catch Me in a Field of Flowers (1x7)

:

The rain starts to fall and the gang finds refuge in an old European-styled house. This is, however, an Elf hideout and it's inhabitants pretend to be ghosts to keep intrudes out. At first, is a little scared (the Elves are rather imaginative), but when Junpei finds out that these ghosts are, in fact, Elves, he derives a plan to capture them and take their clothes off.