Fate's given Allen Walker a second chance to save himself. After the Ark collapses and is destroyed—along with everyone still inside it—Allen somehow finds himself years in the past. After two months of traveling, in search of his friends, he comes across the place of Mana's burial, where a young, broken, and cursed boy mourns his father's second death.

Allen Walker has finally completed his three year apprenticeship with General Cross, and is now headed to the Black Order to fulfill his duty as an Exorcist. Unfortunately, he didn't expect to crash into his white-haired look-alike. "Hello, nice to meet you! My name's Robin." [Robin taken from the one-shot Zone by Hoshino Katsura]

"Allen didn't really notice, since all he could think about was the fact that his papa had finally come to rescue him. Really, who else would have hair as bright crimson as his own and would immediately come help him the moment he was in trouble? Yes, this made perfectly logical sense in the three-year-old's mind…"

Damaged and beaten, Allen had been only a crack away from shattering. Painstakingly, Mana patched and rearranged the broken doll that the little boy was, until he became something unrecognizable; but maybe that was all for naught. Now in the hands of the Noah, Allen's mind steadily deteriorates as he is corrupted and unwillingly turned against his own kind.