Pop Mikasa Ackerman 1166ATTACK ON TITAN POP N 1166 S3 Mikasa Ackerman This Pop! represents Mikasa Ackerman, a member of the Survey Corps and the highest ranking member of the 104th Training Corps. Attack on Titan is a critically acclaimed Japanese anime series set in a world where humanity lives in cities surrounded by enormous walls, protecting humans from gigantic, man eating humanoids called titans. It's as terrifying as it sounds.