In a utopian society created at the end of the third world war, a female warrior who has been plucked from the badlands begins to see cracks in this new facade. And what does this community have planned for the rest of humankind?
Toru recalls his life in the 1960s, when his friend Kizuki killed himself and he grew close to Naoko, Kizuki's girlfriend, and another woman, the outgoing, lively Midori.
When eighth-grade cool guy Hiromi transfers from Tokyo to a small elementary/middle school with only six kids enrolled, wholesome and honest Soyo becomes enthralled with his sophisticated world.