X6-01 is the very first Gen 1 Synth ever made. Even before the Great War of 2077 and the Institute was founded, he was alive. X6 was assigned to Nora, a retired military vet, for "experiments" and "testing" from an unknown company. He just showed up at Nora's door one day. Now that the bombs have fallen, and the the War is over, three mysterious people have come to kidnap Shaun, Nora's year-old son, kill Nora, and take him to a very secret place... X6-01 takes it upon himself to find Shaun, and avenge Nora. Along the way, he becomes Topper, an awesome Synth who will do anything to help someone. I own neither Fallout 4 nor the characters associated with it. Fallout 4 and its characters are owned by Bethesda.