Board Thread:Manga/@comment-212.219.90.172-20160420133616/@comment-27441457-20160420173320

If you're referring to the Ackermans who moved into the forests at the south of Wall Maria, that was referring to the Ackermans that Mikasa's father was born into, not Levi. Kuchel stayed in the Underground beneath Mitras and Wall Sina, so Levi would've been born there. He didn't leave the Underground until Erwin brought him into the Survey Corps.