"Demon Slayer: Kimetsu No Yaiba" Passerby's Growth Manual

"The eyes of those who miss you are the color of the sea" Ibuki Kiyoko lived happily until she was fourteen years old. She has parents who love her, lovely younger siblings, a gentle and handsome sister, and a cute puppy. In daily life, there is nothing more than helping parents share busy things. A life of adequate food and clothing has allowed her to grow up to this point, and she thought she could continue like this. Until the night of my fourteenth birthday. Blood dyed the floor red, and flames spread and burned in the wooden room. The smell of burning wood covered her low whimpers and the rest of the smell. She was hidden under the bed by her parents and watched the evil spirit tear apart her sister's body. From then on, everything turned upside down. She stood in front of the burned wooden house and looked at the rising sun with nowhere to go. This is a nightmare that Ibuki Kiyoko cannot escape. * "Give me your hand." The boy's voice was clearly audible in his memory. The mountains are filled with fog, and the night is hidden under the thick fog and cannot be seen clearly. Her wrist seemed to be held by someone just like in her memory, and her arm was passively lifted up, the blade of the Nichirin Sword shining brightly. "It's okay, there's nothing to be afraid of. It's very simple. We've practiced it many times." The gentle touch is both real and illusory, and the evil ghost appears in an instant. Just like she had imagined and thought about countless times, the blade split the air and fell hard, the breathing method was used, and the body was incredibly light. Until the evil spirit's head was chopped off, Ibuki Kiyoko stood among the scattered ashes holding the handle of the knife, looking at the empty wrist, and spoke softly with a voice like a whisper. "I did it." She said. "I'm still alive, Qiu Rabbit." ———————— Brainstorming The heroine is really just a passerby, and her strength is not high () I don't know if it counts as CP. If so, it should be Qiantu. The heroine learned breathing techniques some time ago before Tanjiro OOC apologizes, please be careful with your writing style. Intention: Move forward with persistence