The Heavens: One World, One Superpower

Su Chen was slightly surprised.

However, I quickly realized it was related to the ultraviolet lamp.

He told Urokodaki Sakonji that ultraviolet lamps had an effect on ghosts.

It is likely that Urokodaki Sakonji has already informed Ubuyashiki Kagaya of this news.

Faced with such shocking information.

It was expected that Kagaya Ubuyashiki would hold a meeting with the leaders.

"Since they were able to hold the Pillar Meeting, Kagaya Ubuyashiki must have done some experiments."

"It has been verified that ultraviolet lamps are extremely harmful to evil spirits, therefore ultraviolet lamps should be used in actions against evil spirits."

"Why would you just invite me?"

"I can't offer any good advice either."

"Fine, let's go see this Demon Slayer Corps leader who, despite being a mortal, possesses an incredibly strong will."

"He is a respectable person."

Su Chen took his luggage.

Following a hermit, we arrived at a place.

A horse-drawn carriage is ready here.

The hidden member said, "Lord Su Chen, this trip requires extreme secrecy, and we will need to blindfold you. Please forgive us."

Su Chen said, "It's alright."

He was invited to attend the Column Meeting.

The hidden members naturally respected him and called him "Lord Su Chen".

After all, only the Lord and Pillar-level swordsmen have ever been able to participate in the Pillar Meeting.

Su Chen was blindfolded.

Get into the carriage.

The vehicle moved slowly forward.

They walked about twenty miles.

They were taken to an unknown place.

Although he is cunning.

However, he disdained to spy on Kagaya Ubuyashiki's residence.

Knowing or not knowing does him no good whatsoever.

Moreover, such people are bound to have multiple escape routes.

If you live in one place for a while, you will inevitably move to another place.

It was already night when they arrived at Kagaya Ubuyashiki's residence.

But it just so happens that nighttime is the perfect time to hold this meeting.

After arriving at Kagaya Ubuyashiki's residence.

The first person Su Chen met was still Tomioka Giyuu.

Yoshiyuki Tomioka was somewhat surprised.

"How did you end up here?"

"I came by invitation."

"Um?"

"Perhaps it's related to something I discovered."

"What's wrong?"

"Ultraviolet rays are harmful to evil spirits."

"Ultraviolet light? What's that?"

Most of the Demon Slayers have never attended school.

They lack knowledge of some basic physics.

Moreover, education in this era was backward; unless they were children from wealthy families, children from poor families had no chance to learn to read.

Yoshiyuki Tomioka was adopted by Sakonji Urokodaki when he was a child.

He had not received any training in physics.

It's normal not to know what ultraviolet light is.

"Sunlight consists of seven colors of visible light and two colors of invisible light. Visible light is red, orange, yellow, green, cyan, blue, and violet, as exemplified by rainbows. Invisible light consists of infrared and ultraviolet rays. Infrared light is light other than red light, and ultraviolet light is light other than violet light; both have extremely high energy and powerful destructive capabilities."

Giyu Tomioka's handsome brows furrowed.

However, he quickly associated it with rainbows and imagined the spectrum in his mind.

His brow immediately relaxed, and he asked, "And then?"

"Senior brother, do you know anything about the Western world?"

"I've heard that the people there are called foreign devils. They have blond hair and blue eyes, are strong, and have a strong body odor."

"What you said, senior, is right. Those foreign devils also have a kind of evil spirit, which they call vampires. They also have an organization similar to the Demon Slayer Corps, called the Demon Hunters. Vampires are also afraid of sunlight. The Demon Hunters there discovered that the light emitted by ultraviolet lamps can harm vampires. I deduce from this that the evil spirits here might also be afraid of ultraviolet lamps. If they are, the Demon Slayer Corps can turn the tide of battle, and the night will no longer be the evil spirits' domain. We can also use ultraviolet lamps to turn the night into day."

"I see."

Giyu Tomioka was deeply shaken.