The students in Class 3-E of Kunugigaoka Junior High have a new teacher: an alien octopus with bizarre powers and unlimited strength, who's just destroyed the moon and is threatening to destroy the earth--unless they can kill him first! Meet the would-be assassins of class 3-E: Sugino, who let his grades slip and got kicked off the baseball team. Karma, who's doing well in his classes but keeps getting suspended for fighting. And Okuda, who lacks...

"Ever caught yourself screaming, "I could just kill that teacher"? What would it take to justify such antisocial behavior and weeks of detention? Especially if he's the best teacher you've ever had? Giving you an "F" on a quiz? Mispronouncing your name during roll call ... again? How about blowing up the moon and threatening to do the same to Mother Earth--unless you take him out first?! Plus a reward of a cool 100 million from the Ministry of Defense!...

"The year is 2112, and it's the apocalypse exactly as expected: rivers receding, oceans rising, civilization crumbling. Humanity has given up hope, except for a group of Indigenous outcasts who have discovered a time travel portal in a cave in the desert and figured out where everything took a turn for the worst: America. Convinced that the only way to save the world is to rewrite its past, they send one of their own--a reluctant linguist named Tad--on...