This is Duel Masters... not Men In Black!

since u wanna no ,check every city and house in them.there r these people

yes it's true

Beat the game ( win every single tournament, not including the submarine) and then go back
to your village, they will be there, and ready to duel, they are very tough so i would
consider you making sure your deck is very tough

where are they

i need to git any cheat that you know hopw to git asap megman110. ps. this is also crappy
for klvls like yugioh gx spirit callers

What am i supposed to do once i battle them how long does the mission stay on for?

forever