Ultraman cubs begin to wreak havoc.

The old man groaned in a beast-like voice.

The newcomer's gun remained motionless, inching closer. Affected by this, the old woman retreated, bumping into a roadside tree behind her after a few steps. This unexpected turn of events made her instinctively turn around. The newcomer didn't miss this moment; like a bullet leaving a chamber, she moved. Silently, she took off, pushing off the ground. Her trench coat billowed as she soared into the sky.

The old woman turned her head, and she was already there. The next instant, her spinning kick grazed Saijo Nagi's ear and struck the old woman in the face, sending her flying and crashing into the concrete wall. At the same time, the attacker landed nimbly and pulled the trigger. The bullet pierced the old woman's body.

With an annoying gurgling sound, the old man turned into green bubbles and melted away.

That thing isn't human...

Saijo Nagi kept her head down, facing the asphalt road, groaning in a daze.

After confirming the missing body, the young woman turned around and walked over, where she met Saijo Nagi's gaze.

Then Saijo Nagi fainted for the first time since she was born.

When she woke up again, Saijo Nagi was sleeping in her own room, on her own bed.

In an instant, Saijo Nagi wondered if all those things that happened earlier were not a dream. But when she saw the girl next to her secretly observing her, she realized that it wasn't a dream. If it wasn't a dream, then it was all good. When she realized that she was relieved, she was startled.

"She's awake."

"...Thank you"

"Want some chocolate?"

The young woman asked in a seemingly indifferent manner.

Saijo Nagi nodded and accepted a chocolate. As the chocolate slowly melted in her mouth, she felt a touch of warmth from the older girl, and her heart calmed down slightly.

As soon as Saijo Nagi settled down, the young lady spoke up.

"How about it? Just pretend you didn't see anything tonight, that it was just a nightmare."

"but...."

"No buts. Please forget all that. I wasn't really supposed to be here. It just so happens that you're my neighbor, so I'm doing you a favor. If you want to thank me, thank me for this."

She spoke in a persuasive manner, then stood up.

"Alright, I should go back now."

"Wait a minute."

Without a second thought, Saijo Nagi got out of bed and stood up.

"Miss, are you leaving?"

"Well, by tomorrow, the room next door will be empty. There won't be a chance for us to meet a second time."

"I don't want to. Please take me with you if you're going out, please."

"what?"

Ignoring her already furrowed brows, Saijo Nagi continued to shout.

"Are you going to fight the same guy who attacked me? I'd like to lend a hand; I want to fight together."

"What are you saying? A girl like you could never do it."

She haughtily refused. However, Saijo Nagi couldn't be persuaded to give up.

"No, no, I can do it. I'll give it a try. If it weren't for you, I'd die tonight, wouldn't I? I wouldn't survive, would I? My mother... she passed away because she didn't have someone like you protecting her..."

I finally understand what I really want to do.

I long for the power to protect only one person...

It was on the day my mother passed away that I felt such a strong, trembling longing.

"Just like you, I want to protect someone. Please, let me do it. If I can do it, I..."

Nagi Saijo's mother's face appeared before her eyes.

"Maybe I've already proven that I'm not a stupid kid or anything!"

Saijo Nagi kept staring into her eyes, and she looked back intently at Saijo Nagi.

When did this intense staring and being stared at begin? Before this... yes, it was when I declared to my mother that I wanted to leave this family. Back then, we stared at each other silently, and my mother, who should have been angry, somehow had a hint of sadness in her glaring eyes.

Soon after, she suddenly broke the tension.

"Your eyes are quite beautiful. They look exactly like mine..."

Then, she squinted and said.

"I have lost someone important to me before. I regretted not being able to protect that person. For me, it was also because I thought that if I had the power to protect that person... that's why I chose the path of a secret agent."

On the day she lost something important, Saijo Nagisa probably made a firm resolution to become stronger. And so, she used her black trench coat to firmly conceal her heart. It seemed as if she was no longer capable of being hurt...

She smiled and nodded.

"What a disobedient young lady. Alright, please follow me."

Saijo Nagi's heart was instantly filled with joy and warmth; this was the first time she had felt content since her mother's death.

"But don't get me wrong, this is definitely not an easy job. You'd need several lives to do this. The time to hope you won't get caught up in it will always come. When that time comes, don't say anything discouraging. Are you up to it?"

Saijo Nagi nodded vigorously. Yes, if she hadn't come to save me, I would have died. I have nothing left to lose.

"So, we haven't told each other our names yet. What's your name?"

"My name is Saijo Nagi."

"My name is E, but my real name has been erased."

The young woman spoke with a serious face while fiddling with the chocolate box.

From then on, E taught the little girl, who knew nothing, the truth of this world—

Invading aliens with invasive intentions have been relentlessly invading Earth. As an agent of the secret organization "TLT," she identifies these aliens and secretly eliminates them as part of her mission.

The agents live among ordinary citizens, carrying out missions assigned by headquarters with utmost secrecy. The organization's true nature is shrouded in mystery; even E seems to have no idea where TLT's headquarters is, or who the so-called commander really is.

Then, she began to explain matters related to the mission she was currently carrying out personally.

The incident occurred in the newly emerging Republic of G in Eastern Europe.

The Republic of G was founded three years ago by the leader who led the region to an end of ethnic and religious wars and became president with extremely high approval ratings. This leader, utilizing a new energy source to replace oil discovered approximately five years ago, rapidly elevated the Republic of G's status worldwide.

In January of this year, this seemingly divinely inspired mentor suddenly passed away.

The cause of death was undeniably an accident. He was swept away by a rockfall at the location he was visiting. The entire incident was captured on camera. To avoid confusion, the footage was sealed away and will never see the light of day again.

There is absolutely no possibility of making it public.

The blood of this rare political figure, who struggled to escape from between the rocks and died midway, was not red, but deep blue.

He was an alien in disguise. When he was replaced is still uncertain. However, he wielded great power and was indeed prepared for invasion.

Since his death, the invasion plans of these Putromeus aliens have come to light. Politicians, religious figures, company employees... after killing the original owner, they took his place, cleverly seizing his position, and then waited for the opportunity for their brethren to completely invade Earth.

TLT agents immediately received orders to search for and eliminate the Putromeus aliens who were mimicking Earthlings.

The one who attacked me was the third alien discovered in this country. He was posing as a government employee and was being hunted by E tonight. After fighting her, the wounded alien fled and encountered Saijo Nagi. That's roughly it.

However, this is not the end.

"Well, it's still early, but I have a task I'd like you to try. It's a bit challenging for me, but maybe you can manage it?"

After hearing E's words, Saijo Nagi drooled and nodded...

That day, E gave Saijo Nagi a photo of a man around fifty years old and explained:

"Ichijo Ryoji, the company president, is a man who made his fortune by developing new energy sources."

It is said that Yitiao had contact with the leader of the G Republic mentioned before his death.

To confirm whether he was truly an alien, and if so, to eliminate him swiftly—this was the next mission assigned by TLT.

“Although Saijo Nagi has also infiltrated Ichijo’s company, the security there is quite strong. However, even though Saijo Nagi is absolutely certain that the guy is an alien, I still want to ask you to start your offensive by targeting his family members.”

Ichijo's wife had long since passed away, and he lived with his only daughter, Sayuri. Sayuri was a university student and a classmate of Sumire.

"Make contact with Sayuri and gather information about her family. This is the basics of infiltration."

This is the task assigned to Saijo Nagi.

Sayuri is petite and a rare, delicate young woman who exudes a subtle fragrance. That's right, she's not a typical college student. Saijo Nagi would describe her as a "young girl" no matter who sees her. With her long, black hair, she looks like a doll.

She didn't seem to have many friends, so she quickly became good friends with Saijo Nagi, who struck up a conversation with her after class.

The family owns a considerable amount of assets; in short, they are extremely wealthy. However, Sayuri isn't the type of girl who flaunts her wealth. Sometimes, she seems naive and suddenly does things that lack common sense. That's what you call a "naive and innocent girl."

"I don't have a mother."

One day, Sayuri looked at the distant sky at dusk and said...

Saijo Nagi had already learned about this from information from TLT, but she listened to her words silently.

"She died in an accident three years ago. I was with her then, and my mother will never come back... leaving me to live on."

Sayuri said that there was a time when she thought about following her mother to die, and she felt guilty about being the only one who survived.

However, her father, who was away on a business trip overseas, returned, which changed her mind.