Switched

Set in Blackened Wing's universe: After so much suffering, Kaname and Zero are finally taking it easy, relaxing in the villa where they live together. Unbeknownst to them, enemies are hatching a devious plan: to switch the hunter with his past self. When it unexpectedly works, both vampires, in the past as well as in the future, struggle to deal with the consequences. Warning: KxZ.