Truth [DS Fanfic] Tanjiro×Muzan

Slay 7

A gust of wind blew over...Tanjiro returns to his grown up form. His black colored nails grows as well as his red hair. His body size changes into an adult form, his coat changes color as well into pure black with faded green. His fangs grows..

"Now this is your true form. It seems that you have gotten yourself those evil powers." Kagaya said.

*grins* "Evil power? The power that you can never have Kagaya. Watch as I slice through all your children's bodies, the sound of blood squirting. Hmm. Yes, I used my illusion demon arts. That doctor of yours is living a happy life with his deceased sons. It's all thanks to me. I gave it to him. Bow before me, so maybe, I could consider not murdering you. Humans." Tanjiro forewarned. Some of them tremble upon hearing it.

"Oni-Chan..No..He didn't lose himself to Muzan's powers..He accepted it...How could he?!" Nezuko said with a broken heart.

"The Demon Slayer Corp will not stop just because of a mere demon's words. Attack!" Giyu commanded.

The guards rush towards Tanjiro, but he slice them all with his skeleton tails. Blood splatters everywhere. Giyu jumps into the air with his blade. "Big mistake." Tanjiro yelled as he sends a skeleton tail towards Giyu, planning to pierce him. Giyu moves away, dodging it. "Breathing Water, 10th form. Constant Flux!" Giyu yelled.

It sent several strong currents towards Tanjiro. Tanjiro simply jumps around, dodging it. Tanjiro still in the air, he laughs with excitement. The hype is so entertaining for him.

"First Form: Thunder Clap and Flash. Six Folds." Zenitsu said. He dashes towards Tanjiro mid-air. Tanjiro disappears, causing Zenitsu's breath of Thunder to clash with Giyu's Breath of Water which resulted in an explosion that lights up the night sky. Tanjiro lands gracefully on the top of the roof. Across Kagaya. "Muzan have taught you well." Kagaya praises.

"I don't fall for tricks Kagaya. I can't say his name when he is not here. I know it. Anyways, today we will stop here. Thank you for showing me, how uncapable all of you are. Giyu and Zenitsu's breaths are out of control." Tanjiro said as he laughs. He composed himself afterwards. He turns towards the worried Nezuko and says to her calmly "You should have stayed as a full demon. Then you could be with me."

His tail goes over to Nezuko. Almost like a hand, wanting to let her accept him. "Join me." He said. To which Zenitsu lands between them, stoping him from getting close to Nezuko. "It seems that our fates are not meant to be. Sister. Due to this prick right here." Tanjiro said. He stood there just looking at her for a moment. His eyes shows a sense of willingness and despair.

Nezuko could understand how he felt, she cries as she yells "Stop it! You are not one of them, why did you join them!" Tanjiro says "I can't return to the living. I have did the wrong things. Look at all the people that I have fed and kill. The world is unfair to us. Those died here are just a mere fraction of our revenge."

"Revenge? Muzan killed our family! How could you join hands with them?! He even turned me and you into demons! I lived without blood, so why couldn't you?" Nezuko yells once more to which Tanjiro says "You are wrong. It's not what it seems Nezuko, now is not the right time to tell you. Look at all those eyes here. When we meet again, I will show you everything that you need to know. Nezuko." Tanjiro falls backwards over the cliff and he disappears.

"Oni-Chan!!!!"

....

"What have you gotten me?" Muzan asked Tanjiro who just returned. "In the premise of the compound. There are three gates, it's their weakest bond. If we attack those three gates at once. Nothing will stand between us." Tanjiro said. Muzan goes over to Tanjiro, patting his head. "You have done well, my boy." Muzan praises Tanjiro.

Muzan move his finger to Tanjiro's lips "This is your gift." Muzan said. Waiting for his boy to taste his blood, that's his gift for completing his mission. Tanjiro looks at Muzan and says "I will keep this lovely gift for later." He lay on Muzan's chest immediately after what he said. He could even hear his heartbeats. Even Muzan can't react in time. Tanjiro hugs Muzan tightly. He silently cry on his chest.

"Nezuko..." Tanjiro whispers. He grabs Muzan's neck. Planting his face flat right on Muzan's chest. "Nezuko doesn't know the truth. I hate it! I couldn't tell her yet. I know..I need to follow the plan. I just hate how Nezuko is still with them!" Tanjiro adds. "Guessing you have tried to get to Nezuko? Trust me, my love. We will get Nezuko one day. Those demon slayers dosen't deserve their reputation!" Muzan said with anger in his eyes.

He push Tanjiro away lightly from his chest and looks at Tanjiro who is on the verge of crying telling him "We will kill them, as a way for our revenge. You did well, but you should continue to feed. You have used up some of your energy. Take my blood, restore your energy." He gives Tanjiro his hand. He looks at his veins on his wrist, the blood in his runs like tidal waves. He can feel it even without tasting it. He wants it. He licks his lips. Tanjiro cuts Muzan's wrist, blood flows out. Tanjiro taste the blood. It tasted so good. Tasting it made him grew even stronger.

Muzan heals up the wound. The remaining blood left, Tanjiro takes everything, every last drop of it. Muzan takes back his hand as Tanjiro looks at him. "Just a few more days...Kokushibo have been ordered to recruit more demons to his steed. Once he is done, we will attack them and you will be by my side to watch everything and get the truth you needed." Muzan said.

Tanjiro nods agreeing to the plans. "We have lost too many of my allies ." Muzan adds.

On the other hand, Nezuko walks around the compound, the looks that Tanjiro gave to her that night. "South Wing." She can hear his voice saying that place. He wants her to go into the south wing. From day one, she understands that the south wing is not accessible to her, but she feels that there are some stuff in there that is calling for her to see...Just what is it.

She understands that there is a hidden door that gains you access to the south wing. That's how secretive it is. Nezuko enters the hidden door to get to the south wing. Upon entering, she noticed that there are so many guards there. There must be something going on. As she attempts to go forward, a hand grabs her shoulder.

"Where are you going?"

(!!)