アシガール

Yui Hayakawa is a lazy, unmotivated high school girl with a knack for running fast. Her life takes a wild turn when she accidentally time-travels to Japan’s warring Sengoku period. There, she meets a handsome young lord named Tadakiyo and decides to protect him at all costs. Disguising herself as a boy, Yui joins his ranks as a foot soldier, using her speed to navigate battles and challenges. This action-packed tale blends romance, comedy, and historical adventure as Yui discovers her purpose and fights to stay by Tadakiyo’s side. (Unreviewed summary by Grok 2)