Traumatized by witnessing a Choushuu member murder his parents, Ichimura Tetsunosuke's thirst for revenge drove him to seek strength. At age 15, Tetsunosuke approached the Shinsengumi, hoping to join their ranks. However, he lacked the skill, mindset, and will to coldly execute anyone who threatened peace or the Shinsengumi. Even with support from his brother Tatsunosuke and his new Shinsengumi friends, Tetsunosuke had no idea of the blood and pain he would face as part of this historical group.