In the bustling city of Tokyo, Misu, the female president of a local high school, was known for her disciplined nature and striking appearance. Her long blue hair and serious demeanor set her apart from the rest, making her a respected figure among her peers.

One day, while walking home from school, Misu encountered a peculiar girl with black and white hair named Yama. Misu couldn't recall ever meeting her before, her hazy memory suggesting they were strangers.

Yama insisted that they were friends, but Misu denied it. As Misu attempted to walk away, Yama pulled out a spray can and sprayed something onto Misu's feet.

Suddenly, Misu felt her feet transform into balloon-like appendages, causing her to fall. She tried to yell at Yama, but the latter sprayed the substance onto Misu's face.

Misu shielded her face with her hands, which resulted in her hands transforming into puffy inflatable mittens. Yama continued her onslaught, spraying Misu's arms, legs, and torso.

Misu's clothes fused to her body and her form inflated, making it difficult to move. She felt light as air and struggled to maintain her balance.

Before Misu could react, Yama grabbed her head and sprayed it, transforming Misu's face into a printed expression with an 'O' shaped mouth, and her blue hair into a rubbery blob.

Misu could still see but found herself unable to speak. Instead, all she could manage were squeaky sounds. Yama then sprayed Misu's private parts, completing her transformation.

Misu, now fully transformed into an inflatable doll, found it easier to move. However, she was still unaccustomed to her new body and fell down.

Yama picked up a new spray can, this one causing Misu's breasts and posterior to inflate to beachball size. Misu tried to punch Yama, but her inflated mitts only produced squeaks.

Yama then stuck a nozzle in Misu's bellybutton, causing her a sudden pain. She then wrote a talisman with an eerie sentence, invoking an indestructibility spell and erasing all memories of Misu.

With the talisman in effect, everyone except Yama forgot about Misu. The world carried on as if Misu had never existed, leaving her alone with Yama.

Left alone, Misu struggled to comprehend her new reality. She was now an inflatable doll, forgotten by the world, and known only to Yama. Her journey was just beginning.

Misu spent her days trying to adapt to her new form. She learned to navigate her environment, slowly gaining control over her inflated body.

Yama watched Misu's progress, her eyes revealing a hint of admiration. Maybe she hadn't expected Misu to adapt so quickly, or perhaps there was something more to her actions.

Despite her circumstances, Misu refused to give up. She was determined to find a way to reverse the transformation and regain her human form.

She began observing Yama closely, trying to understand the nature of the spray cans and the talisman. This was her only link to her past and possibly her only hope for the future.

One day, Misu noticed Yama writing another talisman. She observed the symbols and the incantations, storing them in her memory.

Misu started practicing the symbols, using her inflated fingers to draw in the air. It was difficult, but she was relentless.

Days turned into weeks, then months. Misu's determination never wavered. She kept practicing, kept observing, kept fighting.

One day, Yama left one of the spray cans behind. Seeing her chance, Misu used her inflated body to roll towards it.

She managed to grab the can, her inflated fingers struggling to hold it. She aimed it at herself, hoping to reverse the transformation.

But nothing happened. Disappointed but not defeated, Misu realized she needed the talisman to reverse the transformation.

She started practicing the talisman, focusing her energy on the symbols she had observed. She felt a strange sensation, a spark of hope.

One day, Yama returned to find Misu in the middle of her practice. Surprised, she watched as Misu drew the talisman symbols in the air.

Misu didn't notice Yama. She continued her practice, focusing on the symbols. Suddenly, she felt a shift, a change.

Her inflated body started to deflate as if her nozzle is open, her blue hair started to flatten, Misu start losing her control and air inside her body

Yama who opened Misu's nozzle watch as Misu slowly deflated till she is completely flatten like a deflated inflatable doll before Yama fold the deflated doll like clothes and put in a box

Misu open her eyes but she is still a inflatable doll. This time she try to move but she isn't able to. She look around to see yama with a air compressor pull something out on her nozzle.

Misu feel little bit of air inside her body went out. Yama close the Misu nozzle quickly and start to hug Misu

Misu who want to punch yama out but she still isn't able to move as if the air inside her body Force her body in some way The more Misu was hug by Yama the more Misu wanting to be a doll for Yama

And thus, Slowly Misu start think that she is a doll for Yama forgetting her past as president of a high school

The world have already forgotten her,Misu is already a inflatable doll for her master yama. This is She the happiest moment she ever been. For her being a doll for Yama is the happiest moment

For Yama having Misu as a inflatable doll is a plan she planned for a very long time. Yama now make clothes for Misu and use Misu as her maid She is happy that she is with the person she admired and respected the most

From then on, The two live together with each of them having new thing to try and do. the two of them Yama and misu is loving every moment they spent time together