Solnus 35. The Sound of Light, a Fireworks Festival Under the Sea, What Will Happen to Japan?

On the day of the Circumadversum Omatsuri, one morning.

Haoto Nawa expressed his appreciation, "Well done, Niki and Issei! Good job!"

Yuito Kitagawa, who was also present at Bladderbase in the same room as Naoto, commented, "It's time for Eiru to carry out her duties."

Haoto Nawa agreed, "Yes. Please, Eiru, go to our tower control center to immediately create a Circle Mandala."

"Yes! I will, Eiru!" said Eiru Inman Anno. The girl immediately stepped into the designated room. Haoto and Yuito remained in the room, maintaining their 'wrapping' to the antenna.

Haoto commented, "Good, good, good."

Creating a Circle Mandala would take much less time than creating a Triangle Mandala. This Mandala wouldn't take more than a few days to reach completion. The bladderites' Circle Mandala began, and everything seemed to be going smoothly and would end happily for the bladderites.

However, as the creation progressed, Haoto noticed something strange. He shouted, "Wait a minute!"

Yuito asked, "What's wrong? Is something wrong?"

Haoto responded with a question, "They're making Mandalas too?!"

Yuito asked, "Who? Those humans?"

A look of panic appeared on Haoto's face. He stuttered, "Y... yes..."

Yuito asked, "But didn't Issei and Niki destroy their antennae?"

Haoto replied, "Yes, that's how it is... Then, even if those humans are making Mandalas now, they aren't making the triangular ones I predicted."

Yuito: "So...?"

"This is..." Haoto seemed to think for a few seconds before finally realizing something. Haoto shouted, “Those humans formed a Mandala! They exploited our Mandala! They formed a Mandala according to Euclid's First Proposition, Book I!”

Yuito panicked, “What... But where are those humans...”

Meanwhile, Haoto immediately contacted Issei and Niki. “Issei! Niki! The sea! They're in the sea! Attack the Yonaguni Monument! A place with large rocks in the sea near that island!”

(000)

On the day of the Circumadversum Omatsuri, one morning.

Sonoluminescence is an effect that can turn sound into light. This principle can be seen in pistol shrimp. Pistol shrimp can move their claws so quickly that they create small bubbles in the water. These bubbles emit light when they disappear due to high-intensity ultrasonic waves that create extreme temperatures and pressures within the bubbles.

From sound to light.

That's what Professor Hoshimu Kimura and John Anatole Holland predicted. They predicted that Mandala bladderites could be turned off by transforming them into mere light. The method was to "send" the right sound to the Mandala "bubble." In addition to transforming the Mandala, the right sound could forcefully cause bladderites in the human body to disappear.

That's why Seira was so needed. She could play music fluently and also understand mathematical concepts very well. Seira can control how much "solnus" she must emit to create the right sound.

"Solnus" itself is a term coined by Professor Kimura and John Anatole Holland for a force that involves sound, light, and strings of jarhands.

Transforming Mandala bladderites into light is what Seira Ito Fotiou is currently doing. She is inside a small octagonal chamber inside a submarine known as "the Silver Boy Shrimp." The submarine is currently "parked" on top of the large rocks of the Yonaguni Monument.

Niki Kotegawa and Issei Jinnouchi, along with their troops, have entered the sea using their diving equipment. Their goal is to disrupt and damage the Silver Boy Shrimp. However, after only a few meters of submersion, several of their troops are hit by direct fire.

The sniper who killed the bladderites is Daan Batra Mizuguchi. Watching his troops being eliminated one by one, Isssei said, "I'll take care of him. Niki, you prepare your technique from earlier."

As Niki was about to find a place to hide, a large wrapping suddenly appeared in the ocean. It was a wrapping created by Yukyuuritoo Mitsuishi.

"Experience The Elements of Fireworks," Yukyuurito said as he activated something within his enormous wrapping.

Firework-like rockets erupted from Yukyuuritoo's wrapping, striking down the bladderites who were trying to harass Seira. "Blar! Blar! Blar!" Sound and light echoed in the ocean, as if a fireworks display were taking place.

At the same time, Seira successfully completed her mission. Utilizing the Bladderite Circle Mandala, Seira successfully created a Mandala in the shape of a "vesica piscis" (a "vesicle"), similar to that depicted in Euclid's Proposition I, Book I.

When Seira's task was complete, the Mandalas she created and the bladderite shapes lit up. People in the area through which the lines and curves of the Mandala crossed would witness an aurora-like phenomenon.

Japan lies within the vesica piscis circle, in a shape known mathematically as a "mandorla." Japan and a small portion of Russia occupy half of the mandorla.

Shortly after the lines and curves began to glow, suddenly, in Japan and parts of Russia, not only the lines and curves of the Mandala were lit up. The entire area was lit up! From the southernmost point of Japan at Yonaguni to the northernmost point of Japan, the half-mandorla area was lit up!

Even in the submarine, Seira sensed something strange, asking, "What is this?" Meanwhile, John Anatole Holland and his colleagues on land also sensed something strange.

Haoto Nawa, Eiru Inman Anno, Yuito Kitagawa, and the others whose bodies were controlled by bladderites felt they had regained control of their bodies and consciousness. However, before they could feel their freedom again, they felt their surroundings change. The world they had returned to suddenly began to glow.

Yuukyutritoo asked, “This feels strange. What is going on? Has all of Japan been drawn into another world?”