Demon Slayer Swap AU

Chapter 24: Former Member of the Twelve Kizuki

As time passes, I eat fewer and fewer humans. Of course, I eat them whenever I can.. but I don't see as many as I used to. That's why..

The room was lit with a single japanese-style ceiling light as the drum demon crouched beside a human corpse, drinking its dried brown blood. Ubuyashiki stepped into the room.

"Kyogai," he said. Kyogai looked up from the human he was attempting to eat, noticing how Ubuyashiki was wearing a black suit with a white jacket draped over his shoulders. He also had a white fedora on, casting a shadow over his eyes. "Have you sated your appetite?" He asked. "Was that all it took?"

"No... no, I'm not done!" Kyogai responded. The eye, which contained his kanji that read 'Lower Moon Six', was slashed. Kyogai yelled in pain, clutching his eye. "P-please give me more time!" He begged. "Just a little!"

"No, you've had enough," replied Ubuyashiki, his tone calm despite the pain Kyogai was in. "I'm stripping you of your number. You have reached your limit."

....

The more humans I consume, the stronger I can become. Once he saw my potential, Ubuyashiki-sama was willing to share his blood with me.

The power of that man's blood was mind-boggling. I had grown infinitely stronger than ever before, was welcomed into the ranks of the Twelve Kizuki, and continued to gorge myself on human flesh. I would continue to grow stronger! Or so I believed.

I truly believed.

....

"Kiyoshi Nii-chan!" Teruko shouted, rushing over to her big brother, Kiyoshi, with her arms  outstretched towards him.

Kiyoshi let out a gasp, and he set the tsuzumi he was holding down, holding his left arm out towards Teruko as she ran over to him.

"Onii chan! Onii chan!" Teruko cried.

Kiyoshi held her shoulders. "Teruko!" He exclaimed, tears forming in the corner of his hazel eyes. He glanced at Nezuko, who was approaching the two siblings. "Who's she?"

"I'm Kamado Nezuko," she replied, smiling down at them. "I've come to defeat the evil demons," Nezuko crouched down in front of Kiyoshi. "Now then, show me your wounds. Good job hanging in there on your own." Kiyoshi started to sob, covering his face with his hand.

"Onii chan.." Said Teruko, concerned for her elder brother.

Nezuko got a small package out of her haori pocket and held it up. "Now this ointment here is amazing! My Sensei gave it to me!"

....

Nezuko dipped her finger into the creamy yellow ointment, rubbing it onto Kiyoshi's right leg, which had its pants leg torn with blood stained at the ends. "My Sensei's ointment is so amazing. It kicks in in a matter of seconds." She then finished tying the bandage around his leg. "All set!" She looked at him. "Well? The pain's fading, isn't it?"

Kiyoshi nodded. "Yeah!"

Nezuko's expression became slightly serious. "Can you tell me what happened here?" She asked.

Kiyoshi's eyes widened slightly, his lower lip trembling. "A monster dragged me away, a-and I nearly got eaten. But then another monster showed up out of nowhere, and they started fighting to the death over who was gonna get to e-eat me. A-and then, the one with the drum growing out of him.. when the other monster defeated him.. he dropped a drum!" Kiyoshi explained, his voice shaky and fearful. "And when I picked it up and hit it, this room suddenly changed. And I somehow held on until now!"

Nezuko thought for a moment. "A demon with drums growing out of him.. was it him?" She wondered aloud. "He mentioned "marechi" or something to that effect."