 "Rokudenashi Blues" has a wide-arching cast of characters that live in and go to school around Tokyo that must deal with the pressures and struggles that come from being involved in the delinquent struggles of honour and strength.The 4 Heavenly Kings are what the students of Tokyo consider the strongest fighters in Tokyo.They each come from a separate district and often come into contact with each other throughout the later half of the manga, which often result in bloody, drawn out dog fights between the schools involved.