occ: now before you go of on how legendarys don't have genders, im pretty sure they do, but nintendo just made them have no genders to prevent legendary farming by just putting them in the day care. And yes, in this the events of pokemon black and white a1 and 2 are relevant, this is after the 2ed game.
ic: zekrom sat on a cliff his engine inside of his tail whirring, a bright blue light emanating from it. He had just been released from (insert name of character from pokemon black and white 1 here) because he wanted him to be free and he had just flown back to the unova region.