One day in the world of Bang Dream, the band, Poppin Party, finished practice for the day as four of the members left the home of Arisa Ichigaya, the pianist of the group. Mostly due to how they practice their songs in her basement. It was getting late with the street lights dimming by the second.

“Good night everyone!” Kasumi, the vocalist said.

“Man, I’m beat!” Saya, the drummer said.

“I could go for some snacking on the way home.” Rimi, the bassist said.

“I gotta feed my rabbits at home.” Tae, the guitarist said.

“Careful everyone!” Arisa said. “Let’s just hope nothing strange happened on your way back!”

“Aw! Look! Something strange is happening!” Kasumi said as she pointed at the sky.

“Eh?” Arisa gasped as she and the rest of Poppin Party saw what appeared to be Aurora Borealis that started to shine brightly, spreading to the group before fading off.

“Wow! That was so pretty!” Rimi said.

“I say.” Saya said.

“I have a bad feeling about this.” Arisa said.

“No need to lose your head over this.” Tae said while pointing at Arisa dramatically.

“Um…, O-Tae-chan… my neck feels funny.” Rimi interrupted.

“Now that you mentioned it, mine too.” Arisa said.

“My head is feeling funny.” Saya said.

“Could it be…” Kasumi gasped.

“Huh? I was joking.” Tae said. “Are we really going to lose our heads?”

Kasumi held onto her head and pulled it up. It surprisingly popped right off as Kasumi was now just a disembodied head. Where her head should be was just a patch of skin with no blood. Seeing Kasumi doing that tempted the other girls to do the same and their heads detached just like Kasumi. All while they held onto their heads on their arms.

“No no no! This can’t be!” Arisa cried.

“Wow! I feel so Doki Doki right now!” Rimi said.

“Hmm, now I wonder…” Kasumi said as she guided her body to Arisa. It was hard to adjust with her head, not where it should be as her movements were wobbly. When she got close enough, she placed her own head onto Arisa.

“Hi! I’m Arisa now!” Kasumi said.

“Hey! What’s that for? Why do I feel so numb now?” Arisa cried.

“Let me try!” Rimi said as she used her free hand to grab Arisa’s head and place it on her own body.

“Rimirin?!” Arisa cried.

“I want a go too!” Tae said as she placed her head on Kasumi’s body.

“Don’t count me out just yet!” Saya said with her head on Tae’s body.

“Me next!” Rimi cried as her head was on Saya’s body.

“Wow! This feels so surreal! If only we weren’t wearing our uniforms, we’d look really different!” Kasumi said.

“KASUMI! GIVE ME BACK MY BODY!” Arisa screamed.

“But Arisa…” Kasumi begged.

Arisa had her head off and was ready to swap. Though she noticed that she had full control of Rimi’s body as well as feeling. She placed herself back as she sort of understood some rules of all of this. But this had Kasumi getting the wrong idea.

“Let’s stay swapped like this until tomorrow!” Kasumi said.

“NOOOOO!!!” Arisa said.

Suddenly, the girls had their phones ringing and they switched with their original owners. From social media, they saw that the other bands were also dealing with a similar situation with their heads not only detachable but also they can swap heads with ease.

“I wonder who I will swap next.” Kasumi said.

“Don’t you dare!” Arisa screamed.

And so it begins…

…

The next day, we see Kokoro, vocalist of the group Hello Happy World and Rui, violinist of Morfonica meeting up with each other at Rui’s house for business. Rui glared at Kokoro as the blond only smiled back, preparing for a major blow that many tried to deliver to Rui.

“You need to smile more!” Kokoro said.

“I’m good, thank you.” Rui said. “I thought this was a lesson involving music.”

“It is! You can’t make good music without a smile!” Kokoro said.

“I don’t see the correlation.” Rui said.

“Here! Borrow mine!” Kokoro said as she lifted her head off of her body. “Maybe this will help.”

“You do realize that I would just have your body and not your face.” Rui said.

“Oh right! Maybe having my body will straighten you out!” Kokoro said.

“Don’t phrase it that way.” Rui said as she also took her head off. “But if you insist.”

The two exchanged heads as they planted themselves onto their new bodies. Kokoro brushed her long hair to the side as she wobbled in her steps. Rui remained calm and stern as usual as she stared at the blond.

“Wow! I feel so much taller.” Kokoro said.

“Expected due to a change in altitude.” Rui said. “Now, I fail to see how swapping would benefit us.”

“First off, I got to change this outfit! It feels… not so happy!” Kokoro said.

“Not so happy?” Rui asked. “Very well, you can wear whatever clothes that you want in my wardrobe.”

Moments later, Kokoro and Rui were outside with Rui eyeing on the outfit that Kokoro wore. It was cuter in style than what Rui would normally wear. A part of Rui felt embarrassed as this was her body after all.

“I look amazing, right? I can’t believe you didn’t wear this outfit. It’s really cute and looks great on your body!” Kokoro said.

“When I mentioned that you can wear my clothes as you see fit, I didn’t think you would wear that outfit.” Rui said.

“Being on your body is like wearing someone’s shoes.” Kokoro said.

“Quite literally.” Rui said.

“I’ve been swapping a lot ever since that light and it’s so much fun pretending to be other people!” Kokoro said.

“Wait a moment, now I get what you mean.” Rui said.

“Huh?” Kokoro said.

“Perhaps I should swap my head often to get a new perspective of others.” Rui said. “I still don’t understand how smiles affect a performance but I do see people feeling happy when they perform.”

“That’s a great way to put it.” Kokoro said.

“I apologize for underestimating you.” Rui said. “If you don’t mind, I like some time with your body and then look for others.”

…

Touko, the guitarist of Morfonica ran towards a cafe to meet up with Ako, drummer of Roselia. The girl was out of breath, despite her face showing how much energy she has. When they got together, it was clear that something was off. They swapped heads earlier.

“Yo! Ako! Have you gotten used to my body or are you still losing balance?” Touko asked.

“Fu fu fu… I no longer have any problems. I can use this body as if it were my original body!” Ako gloated as her movement wobbled.

“You don’t seem okay.” Touko said.

“Don’t worry! I’m alright!” Ako said.

“Hey, it’s fine if it’s a lot to handle. Swapping heads is new for everyone so not everyone can just get used to it immediately.” Touko said.

“But I really like your body.” Ako said.

“If you insist, I do suggest sitting around here and there for breaks. I had to do that when I swapped heads with Rui.” Touko said.

“Huh… never thought I could do that as I’ve been working out with the body.” Ako said. “Though I wonder why your body is harder to get used to than Lisa-neesan.”

“Hmm, who knows.” Touko said with a shrug.

…

Ever since that light, Pastel Palettes’ agency decided to take advantage of the whole thing as well as other media outlets. One benefit was that it would help calm people down about the matter. The other was money of course as it was trending as all hell. Especially in an odd game show that was just made.

“Maruyama Aya here! I’m the vocalist of Pastel Palettes and we are bodiless!” Aya said.

“It is a lot to take in but please continue to support us.” Chisato the bassist said.

“Even without bodies, we will still give it our all!” Eve the pianist said.

“Seriously, why is everyone so upset about this? This is so boopin!” Hina the guitarist asked.

“I don’t think everyone thinks the same way.” Maya the drummer said.

“Today, we are facing away from potential bodies that may claim for us today.” Aya said. “I do hope I get a really good looking body.”

“AH Chisato-san! I see a pair of hands coming for you!” Hina said.

“Oh my, what an honor to go first.” Chisato said. “It does feel hairy for some reason.”

Aya looking at her side. “Ah… Chisato… that body of yours…”

“Yes?” Chisato asked as her head was picked up and attached to the body.

“It’s a gorilla.” Maya added to what Aya was going to say.

“EHHHH?!” Chisato said as she looked at her new furry body. Out on instinct, she pounded her chest like a gorilla would. “Oh god! This is too much for me! Ooo ooo ahh ahhh!!!!!”

“Man, if that’s how it’s going to be, I wonder what body I will have.” Hina said.

“Hina–san, don’t jinx us!” Maya cried as a pair of hands picked her up.

“They look normal.” Eve said.

“I still wonder who it belongs to.” Maya said as she attached to the body. As it turns out, the body belongs to Tomoe! “Man… I feel so hot blooded!”

In the audience, Tomoe’s head sat on a chair and screamed. “Hell yeah you do! You look great with my body!”

“Man, I feel like drumming something and screaming Soiya!” Maya added.

“I’m next!” Eve exclaimed as Aya gasped at Eve’s new body. It was Samurai Armor.

“Uh… Eve… you okay there?” Aya asked.

“This… this is a dream come true!” Eve cried.

“Maya at least has a normal looking body.” Aya said.

“I recognize these hands!” Hina said as she was picked up and attached to her new body. “It’s Onee-chan’s body!”

Hina’s head was on Sayo’s body and she looked relatively the same minus the Roselia outfit she was wearing. As Hina posed and played with the body, a disembodied Sayo was in the audience crowd and looked annoyed. Glaring at her sister messing with her body.

“Hina, I swear.” Sayo said.

“Please let me get a normal body! Please let me get a normal body!” Aya said.

“Um… Aya-chan… there are no more bodies.” Chisato said.

“What? I’m stuck like this?!” Aya asked.

“At least you would not have to deal with odd bodies.” Maya said.

“Better a strange body than no body at all!!!!!!” Aya cried.

…

Hagumi, drummer of Hello, Happy World, was in a wardrobe with Rinko, pianist of Roselia. Unlike any other wardrobe, it was filled with a lot of headless bodies in different outfits for the two to try on. It’s almost as if the entire place was a mall on its own. All of them lined up like mannequin figures in a store. From the courtesy of Kokoro, vocalist of Hello, Happy World!

“Wow, I never knew Tsumaki-san had this much clothing.” Rinko said. “And bodies to go along with it.”

“See! I told ya!” Hagumi said.

“So many to choose from.” Rinko said. “Perhaps I can make good recommendations.”

“Sure!” Hagumi said as she took her head off and gave it to Rinko. “Lead the way!”

Rinko went off down the hall of bodies as she went to what appeared to be the gothic section, something that made Rinko comfortable. Hagumi’s head looked a bit worried as she was into something more bright and happy. When Rinko found the perfect body, she placed Hagumi on it as the orange haired girl took a look. Hagumi was wearing a black dress with net stockings and frills as she looked disappointed.

“Rinko-chan, I don’t think I like this.” Hagumi said.

“Eh?” Rinko asked. “I suppose it does not fit you.”

“That’s alright. You just picked what seemed nice.” Hagumi said.

“Maybe you can show me your tastes and I can work off of that.” Rinko said.

“Not a bad idea.” Hagumi said as she lifted Rinko’s head off of her body.

“Eh?” Rinko gasped.

“Here we go!” Hagumi said as she ran forth with the head.

Scrambling around, Hagumi looked all over for the perfect body that fits her style for Rinko. Running around with her athletic energy, Hagumi was like a rollercoaster as Rinko’s head was forced to be in this intense ride as the orange haired girl zoomed around the large closet.

Eventually, Hagumi made an abrupt stop and found the body that seemed to be her tastes. She then slammed Rinko’s head onto it with her mighty will, causing Rinko to be dizzy for a moment.. When Rinko recovered, she looked down at the body and had a look and was dissatisfied with it. Something about it seemed too bright and simple for her as she tilted her head with disapproval. The dress had accessories that made it stand out but it was too vanilla for Rinko’s tastes.

“Hmm, not a fan but I think I got an idea of what fits both of our tastes.” Rinko said.

“Oh?” Hagumi asked.

“Care to do the honors?” Rinko replied as she took her head off and offered it to Hagumi.

“Sure!” Hagumi said as she took Rinko’s head. “Now I’m really excited for your ideas!”

Like before, Hagumi ran around at great speed while following Rinko’s directions based on vague assumptions. With their teamwork, they eventually found the body that might work for Rinko first. Afterwards, there was luckily a nearby body for Hagumi that Rinko knows will fit her well while having that Roselia feel.

Rinko had a more vibrant color dress this time but it was darker than the white look the other body had. While Hagumi’s body was gothic but brighter with the black not being as dreary like the previous body. It was convenient that both bodies were next to each other and seemed perfect for the two.

“Wow! That’s more like this!” Hagumi said.

“I suppose this is alright. I like something more… well… something more Roselia but this will do.” Rinko said.

“Dressing up and picking new bodies is so much fun!” Hagumi said. “Maybe we can keep on trying out new bodies?”

“It would be a pleasure.” Rinko said.

“Then let’s get going!” Hagumi said as she took her head off.

“Of course.” Rinko said as she followed suit.