あらすじ
His best friend. His crush. His entire class—turned into nothing but brains. One day, high school student Satoshi Tsutsuno wakes to find his classmates’ bodies missing, their brains preserved in a strange alien system. The culprit? A mysterious extraterrestrial calling herself "Professor A". She calmly explains: to protect Earth, the collective intelligence of Tsutsuno’s class—now reduced to a “brain cluster”—is essential. Left as the only physically intact student, Tsutsuno must now take on a harrowing mission to ensure their survival… and the planet’s. But what exactly is the test he’s been chosen for? And what secrets lie behind this twisted “salvation”? A shocking sci-fi suspense thriller from one of Shonen Jump’s most unpredictable minds!