Yes, it's happened again. Somehow, someway Eren has turned into a baby. It's probably some stupid trick of Hange's to get me to say that I care about the kid or something. Whatever, she'll never get me to admit it because I don't. I definitely don't… don't I?

A failed transformation turns Eren into his six-year-old self, with his memories almost completely gone. The Military Police saw it as a golden opportunity to rid the titan-shifter once and for all. (now Rated M for happenings in chapter 11)

AU: 5-year-old Eren can turn into a titan, and is in custody of Levi. Levi struggles with the responsibility of taking care of a child. In time, his icy exterior is melted by the innocence of the purest heart. Similarly, Eren gets attached to the seemingly coldhearted Levi and sees him as someone who can carry the weight of his world (heartwarming & heartbreaking, please review!)

Eren Yeager, Humanity's last hope. Is reverted to that of a 5 year old? Having lost his memory Eren clings to the first person he sees which happens to be his commanding officer Levi. Levi now must struggle to deal with a 5 year old child in a 16 year old's body that pushes his patience to its limits; and possibly something more.

After an experiment gone awry, the group is left to deal with a de-aged Eren while also trying to keep the military police from taking custody. The Recon Scouts are hardly fit to take care of a child, but as his guardian, Levi is not going to let anyone get their hands on their tiny titan.

AU where Levi is given custody over Eren and Mikasa immediately following the fall of Wall Maria.