Serena's POV:
I was in a lot of pain as I was struggling to get up and fight him but, I feel like something is stopping me from doing that.

"First Form: Unknowing Fire!!" Kyojuro said as he tries to hit him but, Akaza quickly dodges his attack. "Second Form: Water Wheel!!" Tanjiro said as he came up hehind him to cut off his head but, Akaza kicked Tanjiro away from him.

"Third Form: Flowing Dance!!" Giyu said as he cut off Akaza's arm but, he quickly regenerate his arm and he continue to fight them. "This is not good... How can we cut off his head if, he's on his guard" I said to myself until I had an idea. I went to Tanjiro as I got his attention.

"Tanjiro! Me, Giyu & Kyojuro will distract him. You go for the neck as we distract Akaza long enough" I said to him as Tanjiro nodded at me until I went to fight Akaza. "Breath of the Moon Second Form: Moonlight Razor Clash!!" I said as I attacked him with full speed.

I cut off both of his arms as Akaza quickly regenerate his arms again. I actually forgotten demons can regenerate faster. Akaza looked at me until he saw my upset expression as he got confuse of me.

"This is so unfair..." I said as I quickly move and Kyojuro came up to Akaza. "Fifth Form: Flame Tiger!!" Kyojuro said as he swing at him but, he blocked his attack.

"Why don't you & Serena became demons? You'll became more powerful, then ever!" Akaza said as I was about to attack him until I saw Tanjiro run towards Akaza. "Sorry about this, Kyojuro!" I said as I pulled him with me until we both saw Tanjiro manage to cut Akaza's head off.

"Tanjiro did it..." Kyojuro said as he was shocked of this. I watched Akaza was holding his head until Giyu quickly throw his sword and knocked Akaza's head off as he turning to ashes. His entire body is slowly going away until there was nothing there anymore. "We did... We defeat Akaza" Tanjiro said as he was happy until he saw my expression.

"Serena..? What's the matter?" Tanjiro asked as Kyojuro & Giyu looked at me too. "Guys... I need you to look for the others" I said as I quickly disappear. I hear them calling my name as they got worried for me.

Tanjiro's POV:
Serena just disappeared in front of us. What is she trying to do?! I keep on calling Serena but, she didn't answer me until Kyojuro puts his hand on my shoulder.

"Tanjiro, my boy! I need you to go & look for Serena!" Kyojuro said as he gave me a smile. "B-But, what about the others?!" I asked him in a worried tone to him as he was about to go.

"I'll look for the other Hashiras as you & Giyu look for Serena. I'll join you both soon! So, keep your guard up & be careful too!" And with that, Kyojuro quickly leaves me & Giyu behind as he went to look for the other Hashiras. "Let's look for Serena. We don't know, what she's doing" Giyu said as we both went to look for Serena.