One of the vigilant anime series is #QueensBlade
. A series of visual combat series published by #HobbyJapan
in 2005 & it became a media franchise (7 adaptations - 3 anime adaptations , 4 manga adaptations; 3 light novels & a video game adaptation) It revolves a tournament held once every 4 years to determine a queen & one of them is Leina Vance, heiress to the Vance Family as she travel to Gainos where she encountered many other warriors who're competing for their own intentions. Rie Ohashi performed the 1st opening theme.
For more information, here is the link:en.m.wikipedia.org/wiki/Queen%27s_Blade