Nezuko looks at the demon boy as the head comes off from the body, as it lands from her. 

"Man, I'm glad I was able to pull it off as I did. That demon's power is so powerful, but I was able to modify my Water Breathing technique in time . " 

The demon looks at the Demon Slayer as he said, "Curse you! Curse you! You made me so weak! I should've gotten your head when I got the chance! I wouldn't forgive you for what you had done to me!" 

Nezuko was able to get up as she grabs her sword to kill the demon, but he has another trick up his sleeve that she didn't suspect. 

He uses his Demon Art again, as the arrows surrounded her. "Oh, no! Not again!" She thought in panic . 

She was being pulled over, as she thought, "He's pushing me through harder than before. I have to get another move out and reflex my defenses as fast as possible! " 

She yells, "Fourth Form, Striking Tide!" The move came at the precise moment when she needed it the most, as the move came out. 

It worked, but the arrow pushed her upwards as she thought, "I have to unleash a move, now! Second Form, Water Wheel!" 

The move came out as she predicted, as she was able to protect herself from having any more damage to her body than it already had. 

The arrow went down towards the house as she said, " Waterfall Basin!" 

It works as the arrow went her off in a different direction. She tries an different approach, using another move, "Water Surface Slash!

Drip Ripple Thrust-cruve! 

Whirlpool! " 

She thought, "I never imagine that I have to use multiple moves like this! It really hurts . It felts like my arms are about to fall out from doing this!" 

The demon said, "It's not enough! You need to suffer more before I disappear for good!" 

Nezuko thought, "Just when it can be over? It doesn't matter, don't think. Just keeping unleashing moves as you possibly can. " 

Nezuko fell hard to the ground as she groans, "Man, that is going to leave me a mark. " 

She moves slowly as she knew she had to help her brother and the others. 

"Tanjiro. Ms. Tamayo. Yushiro. I'm sorry that I kept you waiting. " She said, as she barely moves, as she thought, "I've gotten a broken leg and rib from that fight. Man, I must be dumb." 

She tries to grasp her sword, "Man, I am too exhausted , that I can't grip on my sword. Tanjiro, hang in there just a little more. I'm coming." 

Meanwhile, Yushiro was having a hard time to get through to the demon's defensive. 

Yushiro said, "C'mon, this is mere child's play. I can locate you easily with a breeze!" 

The demon said, "No matter how you conceal yourself, I can see you so easily!" 

She uses her ball to locate Yushiro.

The ball was about to hit him, but Tanjiro deflects it with a powerful kick, protecting him.

"Tanjiro! Don't do anything rash! Just because you're immortal, it's quite dangerous." Yushiro said to the demon boy. 

The demon boy looks at him, as he sees his brother, Rokuta. He pets his head as Kushiro was annoyed by his actions. 

"Cut it out, man! Pay attention, because it's coming back!" He said. 

Tanjiro kicks the ball so fiercely as Yushiro was amazed by his power. "Amazing. " 

Tamayo came by his side as he said, "Oh, Lady Tamayo." 

The demon girl was mad as she thought, "So, you were able to kick my temari at me? It's annoying!" 

Yushiro was stunned as both demons kicked the ball back and forth. "I can't believe it. Lady Tamayo, what is happening? Is this your doing?"

 "No, it's not my doing. All I ever done to him was giving him a healing medicine to his wound, nothing more. " She replied to the demon boy, "It's not to make demons stronger per say. What we are seeing right now... This is really Tanjiro's power.

Without devoring human blood, relying on his own way, he's gotten stronger in a rapid speed. " 

Tamayo thought, "However his opponent is tougher than he is. I have to help him . " 

The demon said, "You're too interesting, boy. I wonder how long you can hold out. " 

Tanjiro seems to be annoyed at his opponent. 

Tamayo said, "Hey, you Twelve Demon Girl. " 

"You're in my way!" She said. 

"Just tell me one thing. Are you aware of your master's true identity?" 

"What you mumbling about?!?" She spat. 

"He's nothing but a coward. He lives in fear of something. Do you know why the demons can't band together?

It's to prevent other demons to band up together and attack him.

He manipulates other demons to act this way, like you and your brother." 

She said, "T-That's not true! You're lying to me." 

Yushiro realizes that she was casting a spell. 

"Lady Tamayo, she's using a spell!" He thought as he saw the blood.

The demon yells, "No one is stronger than Lord Muzan Kibutsuji! " 

She drops the balls as she realizes something she shouldn't done.

She covers her mouth in pure shock, as Tamayo said, "You uttered his full name out loud, haven't you? That is what triggers the curse. " 

Yushiro thought, "Magical Aroma of Daylight. It weakens its brain functions, rendering that person to unable to lie or keep secrets. I have to admit, that really comes in handy at times like this." 

Tamayo said with a regretful tone, "I'm so sorry about this, but this is farewell. " 

The demon ran in fear, "Please! Please forgive me! " 

Nezuko was able to make it in time, but she was shocked of what is happening to the demon.

She drops the sword in her mouth as the demon dies in front of her. 

Nezuko asks, "Wait a sec. Did she... Did she just die?"

Tamayo explains to the Demon Slayer, "Unfortunately , yes. It's the curse. Her physical body will be destroyed by Muzan's cells still inside her body.

In general, battles between demons are futile. 

It's pointless, because they can't inflict fatal wounds on one other. Only the daylight or Demon Slayers' swords would do it.

Muzan only appears to be able to destroy demon cells. 

Nezuko was so complex on the situation as Kushiro came towards her as she was muffled by him. 

"Don't breathe into Lady Tamayo's spell, Nezuko. It harms the human body!" He explains to her. 

Nezuko thought, "I'm just glad Yushiro is kinder to me. " 

"Nezuko, She's not of the Twelve Kizuki. The Twelve Kizuki have numbers engraved in their eyeballs, but it appears she doesn't have one. The another one doesn't have it either." Tamayo said, "They're weak." 

Nezuko was shocked by Tamayo's revelation. 

"You got to be kidding me. They're really weak, at that level?" She thought. 

Yushiro said, "Well, Nezuko, Lady Tamayo never lies. I am still pissed of of them trying to kill her though. " 

She got the blood sample, "I hope that this blood will be instrumental to the healing serum. I'm going to take care of Tanjiro. He appears to inhale the spell too. Sorry about that." 

She hears the demon, "Teri. Teri." 

Nezuko grabs the ball, as she said, "Here. I believe this is yours." 

"Play with me." She said, as Nezuko thought, "She's just like a little kid.  Even though she's killed thousand of people." 

The sun came out, as the demon's body was disappearing. Nezuko got off the cloth that she had received earlier as she thought, "You were tricked of thinking you were one of the Twelve Kizuki. Compelled to fight , and now you were killed by this curse. There is really no ending to this , is there?"

She thought in anger, "Muzan, is this a game to you? You really decided of this is what your followers deserve?"

She walked towards the damaged house as she was curious of where Tamayo and Yushiro went off to.

"Ms. Tamayo? Yushiro? Where did everyone go?" She asks. 

"Nezuko, over here!" Yushiro yells as she hears his voice. 

She went down the basement as the first thing she sees was her brother. 

She smiles in total relief that her brother was all right. "Oh, Tanjiro!" 

The demon boy saw his sister as they embraced in a hug. 

"I took the liberty of taking Tanjiro into the basement before the daybreak rises. " Tamayo explains. 

Tanjiro lets go of his sister as she went towards Kushiro and Tamayo. 

"Tanjiro?" Nezuko asks curiously of her brother's actions. 

He went to Tamayo and hugged her as Yushiro was too stunned of his actions. 

"Tanjiro! C'mon, this is so rude! S-Stay away from Lady Tamayo!" Yushiro said, but she replied, "Kushiro, it's fine. Don't worry too much." 

Yushiro said, sheepishly, "O-ok." 

Tanjiro looks at him as he pats his head, "Ok, that is so creepy! Cut it out!" 

"Tanjiro was acting this way ever since he woke up. Is he all right?" Tamayo asks Nezuko. 

"Awe , he's all right. He just thinks that you're someone in our family. That's why he did that." 

"Family? But I thought the spell that Tanjiro is under is allow her to see humans as her family. Yushiro and I are demons after all." 

Nezuko said, "Ms. Tamayo, you don't get it? Tanjiro sees you as humans that needed protecting. That's why he worked so hard of trying to help you and see that you wouldn't get hurt. 

At first, I wasn't too keen about him under a spell, but now I think about it, it I feel some sort of a relief that he has own sense of will. Is that a bad thing?"

"No, I don't think so. " Tamayo said, as Nezuko realizes that it must be totally uncomfortable for her of Tanjiro hugging her. 

"T-Tanjiro! I think you had enough of the hugging all right? Can you get off of her now?" Nezuko asks her brother.

Tamayo hugs her brother as she said, "Thank you, Tanjiro. Thank you! " 

Tamayo said to Nezuko, "Yushiro and I will leave this region. We're expose to Muzan now. We must conceal our whereabouts as soon we can. " 

Nezuko said, "Oh. " 

"Nezuko, if it is too much to ask, is it ok if Tanjiro tags along with us?" Tamayo asks. 

Yushiro was shocked of her request, as she continues, "It's not fair for him to fight this way. He'll be safe with us. " 

Nezuko thought, "She has a point. Tanjiro wouldn't be in danger in the world we lived in now. But I'm not so sure if -" 

Suddenly, she felt a hand touched hers as she was amazed that it was her brother, reassuring the Demon Slayer that he wouldn't leave her side. 

She smiles, "Ms. Tamayo, thanks for the offer of concerning about Tanjiro's safety, but Tanjiro and I are going to be together. No matter what it takes. 

I never wanted to be apart from him ever again. I lost my family, and I intend to keep him safe." 

Tamayo said, smiling, "Well, I guess this is truly farewell, isn't it? I hope you are well." 

"Same as you both. I hope we can see each other again someday. Let's get going, Tanjiro." Nezuko said as her brother begins to rush up the stairs. 

"Hey! Tanjiro, take it easy! " She said, as Yushiro said, "Nezuko! Your brother... he's cool." 

"Thanks. Bye, Yushiro." Nezuko said. 

The crow appears again as he said, "Head South- South East! South- Southeast! South-southeast!" 

Nezuko said, sweating, "All right, I get it. Thanks for the info. " 

Suddenly, she hears a familiar voice, "Please! Please! Marry me! I would die any moment." 

She sees a boy with lighting yellow hair. "Is that who I think it is?" She said, as she looks at him.