This is Where to Make the Effort

Jubei-chan the Ninja Girl: Secret of the Lovely Eyepatch – Season 1

Jiyu along with Koinosuke and the Ruffians are being held hostages, Hajime tortures her friends, forcing her to tell him the power of the Eyepatch. Shiro appears and fights him, Hajime is defeated by Jubei II. When Shiro goes back and thanks the old teacher, it turns out that he became possessed by Taiko Daiyu's spirit.