I have watched the first 8 episodes of タンブリング (Tumbling), the 2010 drama with Yusuke Yamamoto, Koji Seto and a great ensemble cast. Yusuke plays an all around bad boy trouble maker, but then he meets the character played by Azusa Okamoto, who is on the girls' rhythm gymnastics team, and next thing you know, Yusuke is on the boys tumbling team. As I said earlier, it has a great ensemble cast, including Rei Okamoto, who is also on the girls' team. (Why do I mention Rei? Just because she should be cast in every show possible.) The plot has the standard "misfits who make good" theme, but touches on a lot of deeper issues as the show progresses, with a different character highlighting that particular issue (and therefore the actor gets a chance to shine).
Worth a watch!
YouTube poster BluexBird1245 has put togther a great tribute clip: