Air Gear - Oh! Great

Itsuki Minami needs no introduction—everybody's heard of the "Babyface" of the Eastside. He's the toughest kid at Higashi Junior High School, easy on the eyes but dangerously tough when he needs to be. Plus, Itsuki lives with the mysterious and sexy Noyamano sisters. Life is never dull, but it becomes dangerous when Itsuki leads his school to victory over some vindictive Westside punks with gangster connections. Now he stands to lose his school, his friends, and everything he cares about. But in his darkest hour, the Noyamano girls come to Itsuki's aid. They can teach him a powerful skill that will save their school from the gangsters' siege–and introduce Itsuki to a thrilling and terrifying new world.

(Source: Del Rey)

Air Gear was first published in English by Del Rey Manga who released the first 17 volumes in the period from July 25, 2006 to August 31, 2010, with the latter three volumes released as a 3-in-1 omnibus. Kodansha Comic USA has been publishing the series from volume 18 since June 14, 2011 and has been republishing the manga in 3-in-1 omnibuses since May 28, 2013. It was also published in Spanish by Norma Editorial from November 2007 to September 2013 and in Italian by Panini Comics under the Planet Manga imprint from March 23, 2007 to March 16, 2013.