Yankee High School Girl 7 ~Tochigi's Strongest Legend~ (2011)

Synopsis

For many years, numerous biker gang teams have been fighting fiercely at Seikimatsu Girls' Academy, aiming to be the top of the school... Meanwhile, the "Jounan Family" led by Hikaru (Meguri) is about to take the top spot, but is easily defeated by Kaoru (Ohashi Sayoko), a powerful helper sent by their rival "Fuujin" group, Erika (Maeda Yuki). Hikaru loses his friends one by one. However, the conflict was only the prologue to the secret treasure... A fantastic rampage! The top idol Meguri is here, beyond imagination...! A yoroshiku!!