Ryuki Makano is a 16-year-old boy that lives on Nagashima Town with his aunt and dalmatian dog. In the first chapter, he gets up late for his first day of class, everything looked great until meet again his old ''childhood friend'', which would we wait to this reunion?
The moment has finally arrived! Ryuki and Keiko are face to face, ready to settle their differences in the only way they know how: by fighting. The tension is at its peak, blows are being exchanged, and everything points to this being an unforgettable fight... Or at least that was the plan, but as nothing ever goes according to plan, chaos takes over, leading the pair to an absurd punishment, a frogfight in chemistry class and, even worse, a romantic comedy that nobody asked for.