美丽的少女剑士

In Chiba Dojo, there is a girl named Yuko, who comes here to practice martial arts with her lover Kenji. Chiba, the master of the dojo, guides all his disciples strictly but warmly, and he pays special attention to Yuko, a lonely girl.

Yuko makes ends meet by working part-time at an izakaya. The owners of the izakaya, Mr. and Mrs. Oyama, have already become her surrogate parents. After training, Yuko would come to a busy izakaya, working desperately at a part-time job. And just then, a woman named Hiromi walked into the izakaya wearing a charming miniskirt. She claims to be Yuko's lost sister 19 years ago. Yuko couldn't believe it, but trusted Hiromi, after all, Hiromi talked about a secret that only his family knew.

As time goes by, Yuko and Hiromi live together, and they are sisters. Hiromi also became a supporter of Yuko outside of her work at the dojo and izakaya. Accompanied by her sister, Yuko has become more resilient and her swordsmanship has continued to improve.

However, as the relationship between the sisters deepens day by day, Hiromi seems to be hiding some unknown secrets. Yuko begins to doubt her sister's real identity, as well as questions about events in the past. She decided to find out the truth, not only for herself, but also for Hongmei.