Matsunaga Yoshihiro is the chaperone for a group of high-school students on a summer trip to the beach. One night he saves one of the students, Morisawa Nao, as she attempts to drown herself. She had been on this same trip a year ago, with her fiancee, who was later killed in a plane crash. As these two get to know each other, we find that Yoshihiro also has a painful secret from his past. Watching over everything is a mysterious young girl who somehow is always there at decisive moments.

Ippo, a timid highschooler, is one day saved from being beaten up by Takamura, a boxer. Enthralled by Takamura’s skills Ippo begins to learn boxing, soon finding love for the sport and a drive to challenge the boxing world.  

Led by a hot-shot young "natural", nine young women defy the male-dominated tradition of Japanese sports... not to create a League of their own, but to take on the boys on their own artificial turf and prove there's nothing a man can do that a woman can't do just as well! The hallowed stadiums of Japanese baseball become a battlefield as the bats crack, the sweat flies and every hard-earned run becomes another step in the long road-trip to victory! Sizzling sports action and gripping drama intertwine as nine young women come together in the heat of athletic competition to become the Princess Nine!

Mihashi Ren is the quirky ace pitcher of Nishiura high school’s newly formed baseball team. He, however, has hit rock-bottom in terms of confidence and self-belief, thanks to a traumatic three years in his middle school – Mihoshi academy – and switched to Nishiura just to get away from it all. The team’s catcher, Abe Takaya, thinks otherwise and believes that Mihashi has the control and skill required, and with his lead, could take them all the way to Koshien. Guided by an enterprising coach and an innovative mentor, the team slowly gel as a unit and train hard to make a mark in the upcoming summer tournament. 

Minami “Ikki” Itsuki, is a student and a delinquent. Also known as the “Unbeatable Babyface,” Ikki is the leader of the youth gang by the name of “East Side Gunz.” Upon his return home after being humiliated by a street gang of Storm Riders called the Skull Saders Ikki discovers a secret hidden from him by his benefactors, the Noyamano sisters. The… more Minami “Ikki” Itsuki, is a student and a delinquent. Also known as the “Unbeatable Babyface,” Ikki is the leader of the youth gang by the name of “East Side Gunz. ” Upon his return home after being humiliated by a street gang of Storm Riders called the Skull Saders Ikki discovers a secret hidden from him by his benefactors, the Noyamano sisters. The sisters belong to a group of Storm Riders who go by the team name of Sleeping Forest. Keen on helping Ikki to regain his confidence and pride, they supply him with a pair of Air Trecks (abbreviated as “AT”). Ikki eventually settles his grudge with the Skull Saders, but in the process he receives more than the simple satisfaction of revenge. Determined to experience the sensation of “flight” for as long as he can, our headstrong protagonist is quickly sucked into the mysterious, yet irresistible world of Air Treck. less