IKKI TOUSEN: XTREME XECUTOR

Life gets crazy for Hakufu when she takes on a pupil that acts just like her! A tournament between the school heads start, but due to Hakufu's negligence, her pupil ends up taking her place. The tournament isn't what it seems, and the girls find themselves in the middle of a plot to take over the clans. (Source: FUNimation) — Description from AniList community (anilist.co).