What if Tanjiro have a fate that he will be the master of Chaldea and Humanity's Savior?
Tanjiro Kamado is the son of legendary Yoriichi The Demon Slayer who hunting down the demons and Muzan the demon king that he was beating the crap out of Muzan...
After the powerful blast from Noble Phantasm and leave nothing else for the spider demon son and the motherfucker was been blast in half with overkill by the Noble Phantasm and finally the son had death wish coming for him. When Karna was finally kill him and send the demon son to the hell where he belong to...and this make Karna was float right there by himself and then he sigh out little bit but he sense there was someone else is here and make him speak out.
Karna: "I know you are out there...come on out quietly before I'll kill you." He said to whoever it is here and make the woman was stepped out and revealed out to be...demon slayer member.
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Shinobu Koubichi.
Shinobu: "Hello there." She said to Karna who was float and then she witness the battle between of Karna fighting with the demon spider and instantly killed him by himself and turn out the demon was got what he deserve to be dead. Then Karna narrowed his eyes slightly to looking at the girl and he can see the emotion of this girl instantly emotionless and cold as hell that she was hiding something and make him look at the eyes from her and seems to be cold killer.
Karna: "You're a demon slayer? What business do you want?" He asked her and when Takeo with Zenitsu stop bickering already and they can sense the blow up from here and then Takeo notice Shinobu and he doesn't know what does she want but he look at the woman who instantly want something else and he can see the eyes from her was cold as hell.
Takeo: "*Okay that woman seems to be scary.*" He thought himself.
Shinobu: "No need to be warning...I am here for the hunting...I heard that the girl is a demon inside the casket?" She asked him and this make the servant narrow his eyes at her and he doesn't know what she want but he can seen this girl seems to be cold heart killer.
Karna: "Takeo, run." He said to him and make the boy was begin to running out right away and then he keep running and holding the casket by himself and he is holding Neuzko in there and make him was keep running. Then Shinobu was about to give a chase but then she dodge from the slash of him and then Karna look at her and he said.
Karna: "I won't let you do that, girl....you aren't going to kill the master's sister." He said.
Shinobu: "*Master? This guy can be spawn from the young boy who summon the people or maybe history heroes?*" She thought herself.
Shinobu: "Did you know that she is a demon? She must be eliminated." She said.
Karna: "I understand that Nezuko is a demon...because she wasn't born that way...the demon king kill our master's family and that demon king will face the justice. I suggest you to stand down now before I'll hurt you." He said to her and make her silent and then she smile little bit and she decide to fight him.
