The second volume of the English translation of Attack on Titan: Junior High was even more hilarious than the first. It should be stated that these are 2-in-1 omnibus formats for this English release, so it's really Volumes 3 & 4 of the manga here.
The gags continue, but as in volume one, there is an actual story with gags and maybe something deeper. Mystery is afoot, but even that mystery is light-hearted compared to the main series dark fantasy and post-apocalyptic setting.
This volume introduces Mr. Smith, Commander Erwin Smith's analogue in the JH universe. He seems to be a parody of Mormons or other conservative Christians. But it is done affectionately. He's also smart, charismatic, a brilliant fighter... and he hates them Titans as much as Eren does. His introduction furthers the story.
I laughed at this parody and will definitely pick up future English releases.
Highly Recommended for any AoT fan who doesn't mind some fun parody.