Third Person's POV

The episode starts with Poppin'Party and Hokago Tea Time was soaking their leg into the hot springs.

Kasumi: This is nice!

Rimi: It's so relaxing.

Yui: Yeah! I love hot springs!

Arisa: It'd be nice if we could all go for a soak one day.

Mio: I like this. It's so good!

Saaya: I wish that CiRCLE could become a hot spring resort.

Ritsu: I agree with you 100%!

Mugi: Me too!

Arisa: No, that's not happening.

Everyone except Arisa: I know, right?

They then laughed together as the camera moves to the up and a sign that says "CiRCLE Live House" can be seen.

After that, Poppin'Party went to rehearse their song and it ends successfully.

Kasumi: Yay!

Tae: That was pretty good.

Then, the door was opened to reveal you and Marina entering the studio where Poppin'Party was rehearsing. Marina was bringing a tray with drinks on it.

Yui: PoPiPa, your songs are the best!

Kasumi: Thank you, Yui-senpai!

Yui: Hehe... no need to.

Marina: Nice session, girls.

(Y/N): Your songs are good as always.

Kasumi: Marina-san, (Y/N)-kun!

Marina: You girls just keep getting better--

Marina then stumbled onto something on the floor as the drinks spill out. Poppin'Party and Hokago Tea Time was just silent seeing Marina.

Marina: O-Oh no!

(Y/N): Marina-san, are you okay?!

You went to her as she was just fine.

Marina: Y-Yeah, I'm fine (Y/N)-kun.

(Y/N): I'll get some towels!

However, you fell down as your feet stumbled to the same thing.

Marina: Ugh, was the floor always uneven here?

The things that both of you and Marina stumbled onto then glows a teal light.

Kasumi: Marina-san, are you okay?

Meanwhile, outside of CiRCLE...

The scene shows Roselia who just arrived at CiRCLE. Yukina sighed as the others looked at her and was concerned about her.

Sayo: You seem rather dispirited, Minato-san.

Yukina: No idea for a new song are coming to me. I want something unprecedented, like an explosive force hurtling into the sky! That kind of song--

After Yukina said what she wanted, a huge teal beam of light shoots out of CiRCLE. Everyone else witness this thing happening right now.

Roselia, Afterglow, Pastel*Palettes, Hello Happy World, Class 1-A, characters from Teyvat and Kamen Rider Heisei Generation went to look at the bright beam.

Ran: Isn't that CIRCLE?!

Aya: Wh-What's going on?

Kokoro: Are they having a party?

Jiro: W-What is that light?

Aether: Is it another enemies?

Zi-O: We need to find out! Let's go, everyone!

Zenkaiser: Woah! That light is huge! Is it from a Tojitendo?!

Then, the scene cuts to the lobby where everyone went to check out what is the light from.

Yukina: What's going on?

Xinyan: We saw a huge light coming from here!

Kasumi; Oh, girls! Look at this! It's sparkling really bright!

The scene cuts to you and Poppin'Party dug under the floor at the thing you stumbled onto. It turns out that it was an ancient relic shaped like a guitar.

Kokoro: What is it?

Kasumi: I don't know! We found it under the floor!

Jiro: From the look of the thing, it looks similar to your guitar, Kasumi.

Kaoru: It's bright.

Xinyan: Is that an artifact?! Give me!!

(Y/N): Sorry Xinyan, but this isn't for you.

Xinyan: Ohh... okay then.

Himari then went to take a picture of the artifacts. The news about it spread through the Internet as a lot of likes, comments and shares can be shown. The news also spread through the newspaper.

The scene cuts to you and Marina appeared on the TV as you were interviewed by the reporters.

Marina: I never imagine that we'd find something like it under the floor!

(Y/N): We don't even know when does this thing was buried at there.

Then, the camera zooms out to show Poppin'Party who were at Hanasakigawa High School and Tae was holding her phone vertically while watching the news.

Tae: What a week for Marina-san and (Y/N)-kun.

Arisa: I heard a bunch of experts are there to study it.

Xiangling: I wonder what is the history of the artifacts.

Chongyun: We don't know if the artifacts are something precious or just a piece of junk.

Saaya: Let's pay CiRCLE a visit on the way home.

Rimi: Maybe they'll even interview us!

Keqing: I'll come with you.

Xingqiu: Me too.

Hu Tao: Me three!

Chongyun: I'll join in too.

Xiangling: I wanna see the place again!

Arisa: Kasumi'd better keep her mouth shut.

Xingqiu: Arisa's right.

Kasumi: Why me? Arisa and Xingqiu's a big meanie.

Timeskip...

It's after school and Poppin'Party along with the character from Liyue were visiting CiRCLE. However, a huge concrete wall with some signs saying "Under Construction" and "Safety First" was blocking them.

Tae: CiRCLE's supposed to be around here.

Arisa: Was this building always here?

Keqing: I've never seen something like this before.

Arisa: The news did say they were building a facility to study that weird guitar...

Xiangling: Eeeeeeh?! No fair! How are we going to visit CiRCLE like this?

Rimi then went to make a phone call as she was shocked about what she heard from the call.

Rimi: Oh, no! None of the others can find a way to CiRCLE either!

Everyone: What?!

The scene shows the other bands and groups who were struggling to find a way to CiRCLE.

For Class 1-A, Hokago Tea Time, characters of Teyvat, Kamen Rider Heisei Generation & Saber and Kikai Sentai Zenkaiger, it's up to your imagination of where did they get lost at the building.

Kasumi: CiRCLE, where have you gone?!

Then, the camera move to the sky and it shows the views of the building forming a word as a text saying "Girls Band Party Pico~ Extra Large,~" can be seen on the screen and then, the episode ends.

(The end...)

(Ending song...)

(Post-credit scene...)

(Y/N): Where... am I?

Right now, you're at an unknown location just like the others as you were trying to find a way to CiRCLE since you have a work shift for today.

You then heard a footstep as you turned your head to see a few figures and they has some weird hairstyle.

(Y/N): Who are you guys?!

One of the figures smiled as a female voice can be heard from one of them.

???: You'll know sooner or later.

Then, the silhouette disappeared instantly from your eyes once you blinked.

(Y/N): I don't know why are those unknown people here, but all I know is that they might target CiRCLE. I need to be careful and get ready. I'll protect both of Marina and CiRCLE no matter what!!

You then start running as you were determined to go to the live house.

Meanwhile with Marina... she's inside of the live house and a lot of decorations filled the live house. There's also a text saying "Ancient Civilization Fest" can be seen hanging on the ceiling.

Marina: I hope we get lots of customers!

(Y/N): Marina-san...

Marina went to look at you who just arrived at the front door of the live house.

Marina: Ah (Y/N)-kun. You were late. What happened?

(Y/N): I'm sorry, Marina-san. I was lost and it took me a while to find the way to get in.

Marina: I see. Well, I'll allow it, okay? But next time, you should recognize every path and way to come here.

You then went to start working without any more words and you were to keep silent about the silhouette you met before.

(Y/N): Whoever those people are... if they want to hurt Marina...

The screen went black as you finish your words.

(Y/N): ...they got to face me first.

(Author's Note: Hey guys. It's your author, KhairulHafiz2 here. I hope that you enjoyed the first episode of the new Chibi series of BanG Dream.

Also, the other new crossover character won't make their appearance yet. They will later in a few episode later. If you want to know when, stay tuned to the book to find out.

I do not own any series or any of the characters. BanG Dream belongs to Bushiroad and Craft Egg, K-On belongs to KyoAni, My Hero Academia belongs to Toho Animation, Kamen Rider and Super Sentai belongs to Toei Company and you belongs to yourself.)