Eren Jaeger suddenly transformed into a little kid. Levi Ackerman was a father since he had more experience with children (his everyday life with Hanji and the others). Also, he was assigned to the title as a "farther". Hope you enjoy the story!
3DM would mean 3 Dimensional Manoeuvre
3DMG - 3 Dimensional Manoeuvre GEAR
Im sorry I had to
PUAHAHAHAHAHA OH SANTA MADONNA INCORONATA HO PERSO UN POLMONE 😂😂😂