Nobody's POV:
Muzan was about to leave until he felt someone touch his shoulder. When he turned around until he was met the face of Yoriichi even, Michikatsu was with him too.

"Oh shit..." Muzan said as he was in fear. Even, Akaza was watching him too. "Hey, Yoriichi! Hey, Michikatsu! What are you two doing here?" Serena asked them as she gave them a kind smile.

"We were doing our own business until we both saw you hit the blonde guy with a hydro flask. Also, I saw this guy with them too" Yoriichi said as he was still holding onto Muzan's shoulder. "Oh...I see!" Serena said happily as Muzan was trying to get away from Yoriichi.

"Serena? Are you going to do something to him? I have a score to settle with him" Yoriichi said as Muzan was in fear now of, what he hear from him. "Actually no, Yoriichi. You can have him now" Serena said as she gave Muzan a evil smile to him.

"Come on, guys. We're going to be late for school" Serena said as she & the others walks away from Muzan, Akaza, Douma, Michikatsu & Yoriichi until they hear Muzan screaming in fear.

[There should be a GIF or video here. Update the app now to see it.]

All of them didn't turn around as they continue to walk away from them. Meanwhile with Giyu & Kyojuro were recording everything even, watching Muzan getting suffer by Yoriichi too. Also, Kyojuro send a video to the others so they see him getting tortured.

/Time Skip/

I was done with my test as Miss Haruna was checking our papers until she came up to me as she smiled happily too.

"Serena. I'm very proud of you. You actually got all your test right. And, you actually study too" Miss Haruna said as I nodded at her until she saw my tired expression. "Um...Serena..? What happened to you?" Miss Haruna asked as she was curious, what happened to me.

"I'm really tired from studying and doing my homework, Miss Haruna.." I said to her as Miss Haruna was surprised to hear this. "Um... you should get some rest, then. You need a lot of energy, Serena" Miss Haruna said as I nodded at her. When I left the classroom as I was about to go back home until I bump into Kyojuro.

"Serena-chan! My flame! You're not busy today? Are you?" Kyojuro asked as I looked at him. "No, Kyojuro. I'm not busy today because I'm going back home to rest. Why?" I asked him as Kyojuro was still smiling at me.

"Well... I want you to meet my mother because I told her all about you until she wants to meet you in person, Serena" Kyojuro said as I was surprised of this. I didn't expect this even, I never met Kyojuro's mother before too. "Um...Okay, then. When should I come..?" I asked him as Kyojuro was really happy of this.

"We can go now, Serena! Let's go!" Kyojuro said as I got so confused until he picks me up in bridal style and, he run away with me too. "What the-!?? Kyojuro!!!" I scream at him as I blushed in embarrassment because everyone was looking at us.