With summer vacation just beginning, all the boys in Class 2, Year 1 at a Tokyo junior high school, disappear. They barricade themselves in an abandoned factory, declare it a liberated zone, and launch a rebellion against the adults! (Source: Kadokawa, translated)

Not to be confused with three other works bearing the same name by the same author publised in 1985, 2007, & 2009.

The story is set in 2020. Mamoru, an indoorsy second-year high school student, has a crush on Aya, the pretty girl who lives next door. However, Aya is moving out due to adult reasons. Not wanting to be separated from her, Mamoru musters up his courage and proposes a plan to run away from home. (Source: Kadokawa, translated)