(Part 1):
An actor, a martial artist, a gun-crazy high school student, and their tank are transported from earth to a world of elves and magic. However, the spell to return them home was botched resulting in fragments of the spell being magicly imprinted onto their skin. Their solution: run around looking for elves and stripping them whereever they find them.
(Part 2):
After Junpei botched the second attempt to transport back to Japan, the four embark their journey once again to collect runes imprinted on skin of Elvan females by stripping them.
