Munezo Katagiri, a low-ranking samurai, is torn between his love for the maid Kie and his duty to the samurai code. Tasked with mastering western military strategies, Munezo is ordered to kill his former friend Yaichiro, a brilliant swordsman. Realizing he can't defeat Yaichiro with firepower alone, Munezo seeks the help of his old teacher, Kansai Toda, who teaches him the secret of The Hidden Blade.
(Source: MyDramaList)