Zack or code name Luck, was born into the military. Both of his parents were the directors of Project Black Day, until his mother broke off and left him with the director. He Is only a teen though. In his earlier years when he was a child, he spent his time studying AIs, he always wanted one. Seeing as he was apart of the project, the one thing the director could do for him was give him an AI, one of the fragments was given to him. He is only a teen, but acts older than he really is.