Demon Slayer: Imperial Cavalry Breathing Technique

[Genius flow, two heroines, butterfly sisters, try to save the tragedy as much as possible] [Although there are elements of Kamen Rider, the protagonist still uses the breathing method to respect the world view] Kadaya Godai accidentally met a bat named Kivala. According to her, the birthmark on her waist actually contains the power of a Kamen Rider named Teiki. Through the power of the Imperial Cavalry, in addition to creating his own breathing techniques, the fifth generation of Kadoya can also obtain cards for other breathing techniques by obtaining the approval of the swordsman. In order to use this power, Kadoya Godai passed the Demon Slayer examination and commissioned a swordsmith to create a Nichirin sword with a card box. Insert the card into the card box in the Nichirin Blade to use the breathing method corresponding to the card. In addition, in order to repay Kadoya Godai for saving his life, Kivala also gave him two abilities. One is Kadoya Godai in Kiva form, which can temporarily improve his physical fitness; the other is to help Kadoya Godai awaken the superpower that can evolve into Yajituo. It is a pity that in this world, the rules of the world do not allow Kamen Riders to appear, and it is impossible to transform. However, these abilities are enough.