Elf wo Karu Mono-tachi (Those Who Hunt Elves)
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 magically imprinted onto their skin. Their solution: run around looking for elves and stripping them wherever they find them.
[Source: Anime News Network]