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

Mission in Asakusa

"I can't tell you!"

-3rd Person POV-
The demon sobs as he shakily says, "I can't tell you!

-Demon's Mind-
The demon's human form is seen being choked by Muzan. "You mustn't tell. You mustn't tell anyone about me." He puts his index finger in front of his mouth. "If you do, I'll know right away. I'm always watching you." He finished.

-Real World (3rd Person POV)-
"I can't tell you! I can't tell you!" As he starts shaking around. "I can't tell you! I can't tell you! I can't tell you!" He repeats. "The smell of fear is strong. He's trembling down to his bones!" Tanjiro says to himself. The demon regenerates his arms and yells, "I can't tell you, all right?" he lunged at Tanjiro only to meet his doom. Tanjiro dodges his claws and decapitates him. The demon turns to ash as he died. "Once again, I failed to get any information." He scolded himself. He inserts his sword into his scabbard. He looks at Nezuko sleeping with a cut on her forehead. "Nezuko!" He yelled.
He approaches Nezuko and inspects her wound. "She's asleep. She stopped bleeding, too. So, she's sleeping to recover? Sorry. I'm so sorry. Wait just a little longer, OK? I promise to make you human again!" He promised. He places down his box and puts Nezuko in. As he places Nezuko in, Kazumi is traumatized. Tanjiro picks up the box and approaches Kazumi. "Are you all right?" Tanjiro asks. "I've lost my fiancé. How can I be all right?" He says as he cries. Tanjiro is taken aback as he's lost someone too. "Kazumi-san... you may lose people again and again, but you just have to go on living. No matter how devastating the blows may be." Tanjiro says as he tries to console Kazumi. Kazumi is angered by this and grabs Tanjiro's haori. "What do you know? You're just a kid!" Kazumi yells. Tanjiro grabs him and gives him a sad smile. Kazumi realizes what he's done and let's go. Kazumi immediately calms down and lets go of his haori. Tanjiro gets up and says, "I'll be on my way now." As he finished, he grabbed into his haori and gave him the demon's cloth full of the victim's hairpins. "Here. I hope you'll find something of Satoko-san's in there," Tanjiro says. Kazumi grabs it and weeps softly. He opened the cloth slowly to see Satoko's hairpin. As he sees the hairpin, Kazumi tears up and sobs. Tanjiro bows and turns heel. Kazumi finally realized what Tanjiro has been through and says, "So, you've been through this, too? Is that it?" As Tanjiro walks away, Kazumi yells, "I... I'm sorry! That was an awful thing to say! Please forgive me! I'm sorry!" Tanjiro turns around and waves. "His hands were heartbreaking. Hardened by relentless training and so thick. They weren't the hands of a boy," Kazumi says to himself. Tanjiro says, "I'm leaving that young woman in your hands!" "All right!" Kazumi said.
Tanjiro walks down a trail thinking angrily to himself, "It's not just me. How many people have you killed, tortured and tormented? Muzan Kibutsuji, I'll never forgive you!" He clenched his fist as a crow landed on his shoulder surprising him. "Next up, Asakusa, Tokyo! Rumours of a demon lurking there! *Caw*" it informs. "I'm heading to my next mission already?" "Oh, yes, you are!" "Hold on a minute." "No can do!" "C'mon, just give me a minute! Hold on! What?" "Shut up and go already!"

-Time Skip to Asakusa-
Many, many people are seen walking around in a city that lights up the dark. Tanjiro and Nezuko are seen standing looking at everyone. Tanjiro with a goofy face, while Nezuko is just sleeping. "Are the cities this advanced now? It's nighttime, but it's so bright out! The buildings are so tall! What is this? The cities..." Tanjiro thought to himself. He sees a tram going across the track and moves off the way. He puts his scarf over his head and says, "I feel dizzy." He leads Nezuko into an alleyway and says, "Uh, let's go that way, Nezuko!" But as they got into the alleyway, he sees two couples making out. He gets flustered and apologized while bowing. "I-I beg your pardon!" He runs out with Nezuko to a different location.
Tanjiro and Nezuko made it to an udon shop. When Tanjiro approached the udon man, "Excuse me," he said very tiredly. "A bowl of yamakake udon please,"  Tanjiro finished. "Uh, sure thing!" The udon man said.
As Tanjiro was waiting, he said, "I've never been to a place like this. It's way too crowded." Nezuko fell asleep on his shoulder. Tanjiro smiled as the udon man said, "Here's the yamakake udon!" "Thank you very much," Tanjiro said.

-Tanjiro's POV-
As I took a sip of the udon, I got a smell of a very familiar scent and sensed a very powerful person (or thing), but that scent's host's power was very evil and sinister. I dropped my udon bowl and was very shocked to smell such a scent in a place. I grabbed my sword and ran towards the scent. "This scent! Why is it here all of a sudden?" I said while running. I exited an alleyway and looked left and right. I took the right and ran while saying to myself, "It's the same scent that was left in my house!" When I was running, I shoved some people out of the way because I wanted to get to the scent without losing it. "Muzan Kibutsuji! It must be him!" I said to myself. I grabbed Muzan by the shoulder gaining his attention.

-3rd Person POV-
The man, supposedly Muzan, looked at Tanjiro, with slits in his eyes, confused. "It's him!" Tanjiro said to himself as he reached for his sword, but heard a female child's voice say, "Daddy?" Tanjiro put his sword back while Muzan turns his body to show a female child. "Who's that?" She asked. Tanjiro was shocked to see a child with a demon. "He's... he's... he's... he's living here, pretending to be a human!" Tanjiro said in his mind. Muzan's eyes appeared normal again. He asked Tanjiro, "Is there something I can do for you? You seem to be quite flustered." The wife showed up and said, "Oh, dear. What's going on?" "Mother!" The child said. Tanjiro, while being shocked, put his hand over his mouth and grabbed his uniform in disgust. "They're humans! The girl and the woman... their scent is human! Don't you know? Can't you tell? That this guy is a demon? That he eats people?" He asked in his mind. "Do you know him?" The wife asked. They all look at Tanjiro. Muzan answered, "No. Unfortunately, not at all. I've never seen this child before." He drops his arm to reveal claws. Tanjiro was about to stop him, but he remembered how powerful he compared to him. "He must have mistaken me for someone else," He finished. As a random pedestrian was passing, Muzan scratched the man's nape. "Oh, is that so?" The woman said. Tanjiro gasped as he saw what Muzan did. The man held his nape, seemingly in pain. The pedestrian's wife asked, "Dear, what's the matter?" As he lifted his hand, veins can be seen from where he was scratched. He grows fangs while bearing his teeth. "Dear?" The wife asked again. The man shakily looked toward the wife and growled. "Stop!" Tanjiro yelled trying to get to them. Tanjiro ahoved past Muzan and his family. The human-turned-demon bit his wife's shoulder as she screamed in pain. Everyone looked towards the scene in horror. The scream continues as the man bites harder. Muzan looks toward the scene with and angered expression.

Chapter 15: End.

-A Little Secret-
The women* Muzan marries, are all dead due to Muzan verbally abusing them to the point they commit un-alive.

1,316 words (disregarding everything after 'Chapter 15: End').