The year is 1863, and the story is set in Kyoto. We follow a young man named Nio, who is an honest and kind soul, considerate of his family, yet he harbors a hidden burning passion for seeking justice. From the moment he encounters Toshizou Hijikata and Souji Okita, members of a despised group of ronin known as the Miburo, his life takes a turn towards a clearer and more meaningful path. Nio, along with other brave-hearted men, steps forward towards an honest journey, with their blue wills emblazoned on their hearts!