Nobody's POV:
Douma was about to absorb Serena until he saw lots of butterfly were surrounding him.

Then he got stabbed & his arms were chopped off until Douma didn't have Serena in his arms anymore. He looked at person, who interfere him from absorbing  Serena until he saw, who it was. It was Shinobu & Kanao, they came in time before Serena can get absorb by him.

"Stay away from Serena! You demon!" Shinobu said in anger as Kanao was checking on Serena. "Serena has an injury, Master!" Kanao said as Shinobu came up to Serena even, she was really worried of her too.

"Serena! What were you thinking?! I can let you die! You were like a sister to me! Even, you reminded me of my sister, Kanae too!" Shinobu said in a sad tone as Serena gave her a warm smile. "I...can't let you...get killed by him, Shinobu. Also...he's the one, who killed Kanae too..." Serena said as Shinobu eyes widen in shocked of this.

"Even...I did it too...I put the poison in him... I'm not giving up yet. I want to end Muzan so no one can't die..." Serena said as she stands up from the floor. "Serena? Are you sure you want to fight him..?" Kanao asked as she was worried of her and, for her safety too.

"I'll...be fine, guys. We need to end him first" Serena said as she looked at Douma. Both Shinobu & Kanao were ready to fight him. "That was really rude of you both. You just interfere me from absorbing her" Douma said as he looked upset of them until he looked Shinobu as he was staring her haori.

"Wait! Are you the sister of Kanae?" Douma asked as Shinobu glared at him in anger. "Yes... Your the demon, who killed my sister!" Shinobu said in anger as Serena & Kanae never seen her so angry before.

"I actually recognize of that haori. I just ended your sister so fast" Douma said happily as Shinobu was getting angry of him until Serena put my hand on her shoulder and got her attention. "Shinobu. We need you to calm down, anger will not help you to stop him" Serena said as Shinobu nodded at her even, she was calming down. Three of them were about to attack Douma until Inosuke came in time as he break the ceiling.

Serena's POV:
I was... shocked. I didn't expect Inosuke to Break down the ceiling. He's even more crazy then, I imagine. Shinobu & Kanae were still staring at Inosuke as they were shocked of his action.

"Inosuke... DON'T DO THAT AGAIN!!!" I said in anger as he got scared of me. I started to lecture him of his action even, it was very dangerous too. "You almost got hurt or something worse! When this is over! I'm going to teach you a lesson!" I said as Inosuke shiver in fear until I remember, we were still in the middle of the fight.

"Your Upper Moon 2!" Inosuke said as Douma looked in confuse of him. "Do I look like, I'm hiding it to you?" Douma said to Inosuke as I watched him say, 'he going to chop him up and, he'll became the Beast Hashira' too. Is Inosuke on sugar or something..?

"Inosuke! Concrntrate for one second! Also, we need to be careful too. His demon blood art is using ice. If we breath it in, it going to cause damage to us. So, get ready for this!" I said as we all started to fight Douma even, we were dodges his attack. "Breath of the Moon, First Form: Moon Crystal Slash!" I said as I swing my sword at him.

"Your breath technique is, just like Kokushibo but different" Douma said as he was about slice me but, Inosuke saved me in time as he used his new breathing technique. "Beast breathing Ninth Fang: Extending Bendy Slash!!" Inosuke said as I was watching even, I was amazed of him too. He cut Douma's eyes as he was shocked of Inosuke.

He almost got him, Inosuke just need to go to the neck.

"That was amazing Inosuke!" I said to him as Inosuke gave me a weird look even, I can't tell because he's wear a mask on his head.

"I didn't see that coming..." Douma said as he was regenerating until I saw him holding... Inosuke's mask?!! I quickly looked at him until I was shocked to see his face. He looked like a girl!!! This is too shocking for me, I'm just going to ignore it.