What if Tanjiro was a Pure Saiyan? (DB X KNY)

A Demon doctor and her lapdog

"Those earrings," Muzan said to himself.

-Tanjiro's POV-
"Now, listen to me! Here's the deal... my point is this, OK? It's not about the money! What I can't forgive is your lack of intent to eat my udon, all right?" The udon shopkeeper scolded me. "I'm so sorry! Please serve me another bowl!" I apologized. "So, you're gonna eat?" "Yes!" "You'd better eat this time!" "Yes, I shall!" "All right!" He said as he directed his attention toward Nezuko, "You, too! If you're gonna have udon, take off that bamboo first! What's it for anyway? Take these chopsticks! Chopsticks!" He said as Nezuko looks annoyed. I appeared behind the udon man and ordered, "I'd like a bowl of udon! In fact, I'd like to have twenty-five more bowls!" "R-Right!" The udon man said, intimidated. 26 bowls sat in front of me as I slurped them all down. The udon man is surprised and gasps, as I ate it all down in a matter of seconds. I put the last bowl down, put my hands together and say, "Thank you very much for the meal! That was delicious!" " as long as you get it, fine!" He says in gratitude. "Come again!" He yells as I and Nezuko walk off hand in hand. "Sorry about that, Nezuko. Leaving you behind like that," I said as she stopped. "What's wrong, Nezuko?" I asked her. She stared forward with a stern expression. I looked to where she was looking and saw the same demon that was with the female demon. We both jogged up to the demon as I spoke, "So, you waited for us?" "Because I was told to bring you to see her," the demon said in a harsh tone. "I could've followed your scent," I said. The demon said, "Our place is under a concealment spell. No way you could've found us." "Concealment?" I asked. "Besides," He says as he points at Nezuko, "Isn't she a demon? And she's a hag." He insulted Nezuko. It took me a while to get what he said as I said in my mind, "A hag? A hag? Does he mean 'ugly'? Who?" I finally get what he said as I shot a look at Nezuko. "Nezuko?" I said in my mind. I got into the demon's face and yelled, "Who in their right mind would call her a hag? Just take a good look at her features! Nezuko was known as our town Beauty!" The demon looked unfazed and bored. "Let's go," he said. I grabbed Nezuko and dragged her as I yell, Fine, we'll go, but... No way she's a hag! Take a look at her where there's better light! Come on, let's go over there!"
I and Nezuko followed the demon to a wooden fence. I still ramble on about what the demon said about Nezuko, "Oh, I know what it is! It's this muzzle, right? It might be because of this muzzle!" I grab Nezuko and finish, "I'd like you to behold Nezuko without the muzzle!" Before I finish what I was saying, the demon disappeared into the fence. I and Nezuko look at it in confusion. He peers his head out and says, "Hurry it up. While no one's around." I raise my hand to the fence and my hand goes through it. We both make it through and see a large house. I say, "There's a house behind the dead-end!" "Get over here! Listen. Make sure you don't offend her in any way," he says as he gets in my face, "Personally, I couldn't care less what happens to you. But I brought you here because she insisted!" "R-Right," I answer.
We head inside as the demon knocks on the door. I hear a faint, "Come in" on the other side of the door. The demon boy switched up his attitude and says, "I have returned." "Welcome back," The female demon greeted us as we walked inside. "I'm sorry that I left everything for you to take care of earlier. How is that woman?" I ask. The female demon answered, "She'll be just fine. But unfortunately, her husband has to be restrained in the basement." There was a brief silence before I asked, "Isn't it difficult for you to treat people's wounds?" The demon boy hit my chest, but I look down at his fist and then to him. It hurt a little. "You think we're treating humans while choking back drool at the smell of blood? Because were demons?" He said in a harsh tone. "Sorry," I apologized. The female demon stood up and said, "Enough. Why would you resort to violence?" The demon boy put his head down in guilt. "I never introduced myself, did I? My name is Tamayo. That boy is Yushiro. I hope you two can get along." She introduced herself and Yushiro. We both groan uncomfortably as I look at him and think, "That seems impossible." Miss Tamayo answered my question, "It's not all that unbearable. I believe it's much easier for me than normal demons. Because I've altered my body considerably. I've also removed Kibutsuji's curse." "Curse? A-Altered your body?" I asked. She removes her uniform and walks to a door, gesturing for me to follow her, "Come this way," she said. As we enter the room, I see fancy decorations on the wall. Nezuko lays down on her carpet, "Hey, Nezuko, that's bad manners!" I scold her. Miss Tamayo smiles and says, "That's quite all right. Please make yourselves at home." "Sorry," I say. "Now then, allow me to continue. I adjusted our bodies so that we can live without feeding on humans. A small amount of human blood is all we need," she said. "Blood? You mean," I said. "You may find it distasteful, but what I do is buy blood under the guise of transfusions from the mode unable to make ends meet. Of course, no more than would impair them," She finished. I thought in my head, "I see. So, that's why I'm not picking up the distinctive scent of demons from these two. But they do need human blood after all. If blood is all they need, then Nezuko..." "Yushiro can get by with even less blood. I'm the one who turned him into a demon." She said, interrupting me from my thoughts. "Huh? You did? But... eh?" I said, confused. Miss Tamayo said, "You're right. It's generally held that no one but Kibutsuji can increase the number of demons. That's more or less accurate. In over 200 years, I was only able to transform Yushiro into a demon after all." "Two... Two hundred years," I put my hand on my head as I say, "You were only able to transform Yushiro after more than 200 years? Exactly how old are you, Miss Tamayo?" As I finished asking, Yushiro hit me in the chest multiple times. I look at him and just stare in fear while he yells and hits me, "Don't ask a lady her age, you ill-mannered lout!" "Yushiro. The next time you hit that boy, I won't forgive you!" Tamayo scolded Yushiro. "Yes, ma'am!" Nezuko looks at Yushiro angry as Miss Tamayo speaks up, "There's one thing I'd like to clear up with you. I'm not trying to create more demons. I only do this for the terminally ill... or those so gravely injured that they don't have long to live. And in those cases, I always ask them beforehand if they wish to live even as demons." I take a sniff of the air while thinking, "The scent she's giving off is pure and devoid of deception. She's someone I can trust." I clench my fists and ask, "Miss Tamayo, once someone becomes a demon, is there a way to make them human again?"

-Meanwhile (3rd Person POV)-
A ball can be heard bouncing as two demons walk down the same path the three took before. The male demon lifts his hands to reveal an eye above both his palms. He puts them close to the ground as if he was looking for something. "See anything?" The female demon asks. "I can see. I can see footprints. This is it. This is it. From the demon's perspective, he sees the footprints of Tanjiro, Nezuko and Yushiro. "They went over there. There are three of them. And ones carrying some kind of big box," the male demon said. "How shall we kill them?" She asked while laughing. "I can feel the flow of power. Because of all the blood, he shared with me." She finished. "Of course, we're going to kill them brutally." He answers the other demon.

-Back with Tanjiro (His POV)-
"There is a way to turn a demon... back into a demon," as she said that, my interest peaked and asked her while running to her, "Please tell me how!" As I was about to approach Miss Tamayo, (Her lapdog) Yushiro yelled at me, "Don't you dare get so close to Lady Tamayo!" He grabbed my hand and put me on the ground. I felt Miss Tamayo's anger towards Yushiro. "Yushiro," she said. "Yes, ma'am! I only threw him. Lady Tamayo. I did not hit him," he defended. "You mustn't do either," she warned. "Yes, ma'am!" He answered. "Please tell me how," I asked. "For any kind of wound, there's always some kind of medicine or treatment. At this time, I'm unable to turn a demon back into a human... but surely, that, too... However, we are dedicated to establishing such treatment. Towards that end, I'd like to ask you to do something for me. To produce such a cure, we must study a lot of demon blood. I have two factors to ask of you. One... Permission to study your sister's blood. Two... To retrieve blood samples from demons with a high concentration of Kibutsuji's blood. Nezuko's current condition is extremely rare and unique. I understand that she was sleeping for two straight years, and I believe that her body underwent changes during that time. Normally, if a demon cannot consume human blood or flesh or animal for that long... it would unquestionably grow violent. And yet, surprisingly, Nezuko shows none of those signs. This miracle will be the key to finding a solution," Miss Tamayo told me. "Nezuko," I thought. I reach my hand to her and she grabs it and cuddles it. "The other request I have for you is a harsh one. 'Demons with a high concentration of Kibutsuji's blood'... means demons whose powers are more on par with those of Kibutsuji himself. It won't be easy to extract blood from such demons. Are you still willing to go along with my requests?" She asked. I thought as I looked at Nezuko, "I'm getting excited. I can't wait to fight those demons that are almost as powerful as him." "If it's the only way, then I'll do it. If it means you'll be able to research all the demons' blood... and create this medicine... that way, not only Nezuko," I look back up at Miss Tamayo with a smile, "but many others will be saved, right?" I asked. She inhaled then smiled at me and said, "Yes." I found myself flustered at that while Yushiro growls at me. Out of nowhere, I feel two odd presence as Yushiro yells, "Get down!" He went for Miss Tamayo, as I went for Nezuko. Two Temari balls flew through the room destroying anything it hits. The Temari balls went back outside as I heard 2 people laughing. "Did you decide how to kill them?" The male demon asked. "Brutally, of course!" The temari demon answered as she threw both her Temari balls. I held Nezuko safely as the two Temari balls made their way here.

Chapter 17: End.

-A Little Secret-
Both the Temari demon and the other demon became friends, even though they just met.

1,982 words (disregarding everything after 'Chapter 17: End').