NONSTOP! Kyouhei

Kai Kyohei and Matsufuji Hideo, who enrolled in Minamizono High School, were already well-known in middle school, so they were immediately summoned by upperclassmen, but they easily won the fights. The two had no interest in being gangsters, but the delinquents around them wouldn't leave them alone, and they ended up getting into one fight after another. A classic school fight manga.