Kotaro Higuchi is a boy in primary school used to be independent because of the death of his mother and father dell'occupants continuous absences. One of its main objectives is to enter a prestigious school, and for this reason, he attended courses outside school to improve. Its performance, however, is never exalted as that of his friend Takashi Ayanokoji, nicknamed Ten-chan, who for no apparent effort to reach more significant results.
