On a very auspicious summer day, first year middle school student Hajime Yasaka was making a small, prank bomb for his school's "research project," and from its appearance it looked very much like an actual piece of strawberry. However inside the cherry bomb, it was filled with a large variety and amount of hot spices to be exploded once lit. Planning to put in on a strawberry cake and giving it to a classmate whom he did not get along with, Yasaka did not keep an eye on the strawberry bomb and the fuse was lit...
とある夏の日。中学一年生の八坂一は、弾けるキャンディーに一味唐辛子や山椒などを詰め合わせたイチゴ爆弾を作った。そして一はこのイチゴ爆弾をイチゴショートケーキに仕掛け、日頃から彼がいけすかないと思っている山代という男に食べさせようとする。だが、イチゴ爆弾を仕掛けたケーキが誰かに持ち去られてしまい…。