One quiet Autumn day, the Shinonome High School students are busy preparing for their school festival. Mr. Fujisawa, a rock climbing fanatic, is inspecting the school grounds; the business savvy Nanami is selling box lunches; Jinnai, the president of the student council, is caught up in an unscrupulous scandal; and finally, Makoto is completely immersed in inventing a device about which even he hasn`t got a clue. This incident occurs when this is peaceful day is almost over. Jinnai, who`s just insulted Makoto, has caused his invention to operate recklessly. The machine roars, and throws Makoto and the others into another world. What will Makoto, Jinnai, Mr. Fujisawa and Nanami`s destinies be in this magnificent world?