Dubbed- The story is a parody of the Attack on Titan manga, featuring younger, chibi versions of the characters as they attend the "Class 1-04" at the Attack Junior High School
Subbed- Hideki is attempting to get into a university by studying at cram school. While walking home, he finds a persocom android lying in a pile of garbage
Dubbed-Haruka, Rin, Makoto, and Nagisa used to be the members of the same swimming club in elementary. They won a tournament just before their graduation and then they went separate ways...until now
Subbed-With the start of "Operation Meteor": the scientists' plan for revenge against OZ by sending 5 teenage boys to Earth independently in extremely advanced mobile suits