My Ultimate Sign-in System Made Me Invincible

Liam’s transformation had been anything but subtle. The aura emanating from his body during the process was enough to attract attention, but it was the final burst from when the tattoos completed and the creatures manifested that truly shook the Grand Universe.

The energy that exploded outward in that moment carried auras that shouldn’t exist together. The combination created a beacon that screamed across dimensions, and it was impossible to ignore.

And every entity that felt it understood immediately what it meant.

An anomaly had entered their universe. Something that didn’t fit the established order. Something that threatened the hierarchy of power that had existed since the beginning of time itself.

In the Dragon World, specifically in the territory of the Abyssal Dragons, the reaction was immediate.

The first aura was felt when the Abyssal Dragon Spine tore through dimensional barriers, and it brought heads snapping up across an entire continent.

Ancient beings that hadn’t moved in millennia stirred from their rest. Even the younger dragons recognised the aura.

They all felt it. The unmistakable aura of an Abyssal Dragon Spine and that of a high level one at that.

But that was impossible. Those spines didn’t just appear. They were earned through thousands to hundreds of thousands of years of cultivation.

The elder dragons traced the source immediately. Their perception crossed dimensional boundaries like they were nothing, focusing on a single point in the void where a human figure floated.

They watched as his body exploded into fragments. They observed as it began reconstructing from the spine itself, bones growing outward in patterns that made even ancient dragons pause with recognition.

They knew that this wasn’t some crude imitation or stolen power. This was legitimate. Real. A true Abyssal Dragon Spine forming the foundation of a new body. This person was being recreated as an Abyssal Dragon.

The dragons watched the entire process with expressions ranging from shock to fury to something approaching fear.

When the light exploded from Liam’s body and the dragon tattoo tore free, becoming real, every Abyssal Dragon in their world felt it. The roar that creature released carried authority they recognized. Power they understood. A challenge they would normally have answered with immediate violence.

The council of elders convened instantly, their consciousness merging across distances. They needed to decide. This human had somehow acquired things that should have been beyond his reach. He represented either an opportunity or a threat of the highest magnitude.

They were leaning toward threat. Toward immediate action. Toward tearing through space itself to capture this impossible being and extract every secret from his screaming form.

Then that person spoke.

The command simply appeared in the mind of every dragon simultaneously, carrying weight that made ancient beings bow their heads in automatic submission.

Do not harm him.

Three words. That was all. But those three words came from an entity they couldn’t refuse. Someone whose power made the difference between elder dragons and newborns look insignificant.

Someone who never, ever interfered with anything, until now.

The elders exchanged glances across their mental link, confusion mixing with curiosity. She had never protected anyone before. Why would she care about a human?

But the command was absolute. Harming Liam meant erasure, being removed from existence so complete that even the memory of having existed would vanish. The dragons understood this without needing it explained.

Still, not harming him didn’t mean they couldn’t act.

They could observe and investigate who this person is. They could position themselves to take advantage when the protection inevitably ended. And most importantly, they could try to understand what made this human special enough to earn her attention.

The message spread through every dragon clan in the Grand Universe. Blue Dragons, Green Dragons, Red Dragons, Yellow Dragons, Purple Dragons, Sea Dragons, every single type of Dragons received the message.

Liam was protected. Temporarily. But that protection only covered direct harm.

The rest of the Grand Universe didn’t receive such instructions.

For the other entities, Liam represented something far simpler than curiosity. He was a threat that needed elimination.

The Voidling noticed them first. Its massive eyes tracked multiple tears in space as figures began emerging from dimensional folds. They came from every direction, converging on Liam’s location with speed that bent reality.

The cosmic administrator immediately moved between Liam and the approaching threats, its body positioning itself as a shield. It had only been interested in Liam and wanted to help him bring change to the Dark Energy Universe.

Now, after witnessing what Liam had become, after seeing those impossible elements merge into a single being, the Voidling found its priorities had shifted completely.

It would protect him. With its life if necessary.

The approaching entities were still distant but closing fast. They had minutes at most.

The Voidling looked back at Liam’s floating form, hoping for him to wake up soon.

The entities were closing. Seconds now.

Liam’s eyes snapped open.

The galaxy-colored pupils appeared first, swirling with colors that shifted and changed. The runes around them rotated once, twice, settling into new configurations. His gaze was different now. It was deeper, like looking into something vast pretending to be contained in human eyes.

[Infusion Completed]

The system message appeared in his vision, confirmation of what his body already knew. The transformation was done. Everything had integrated successfully. He was whole.

Liam looked down at his body and froze. Tattoos covered his skin. They were beautiful and terrifying, art that carried power he could feel pulsing beneath his skin.

But that realization was quickly overtaken by a more immediate concern.

He was completely naked.

Liam immediately accessed the Dimensional Space, pulling out fresh clothes and he dressed quickly.

"Did anything happen during the infusion?" He asked the Voidling, noticing its defensive posture.

"Nothing happened," the Voidling responded, its voice carrying urgency. "But something is about to happen. We need to leave. Now."

Liam nodded. "I’m ready."

The Voidling didn’t hesitate. Space tore behind them, revealing the Infinite Dimension.

"Go!" The Voidling said.

They moved together, Liam and the Voidling diving through the tear just as the first entities arrived.

The pursuers increased their speed when they saw their target escaping. Several reached the torn space before it could fully close, their hands extending through dimensional barriers, grasping at nothing as Liam and the Voidling vanished into the Infinite Dimension.

And unfortunately for them, they couldn’t follow.

The entities clustered at the closing tear, their forms visible for just a moment before space sealed itself. Liam glanced back and got his first real look at what had been chasing him.

Humanoid figures dominated the group, but their appearances varied wildly. Though he recognised the group near the edge of the group. He spotted beings with pointed ears and expressions of such profound disgust that it was almost comical. Their faces were twisted with disdain, as if Liam’s very existence offended them on a fundamental level.

Elves. Or whatever passed for elves in the Grand Universe.

Liam smiled despite the situation. It was only natural for the the stuck-up magical creatures to be among the first to want him dead. Some stereotypes transcended universes apparently.

He turned back to face forward, his smile fading into something more contemplative. The entirety of the Grand Universe had just declared him an enemy. The future was going to be interesting.

But not now. Right now he wasn’t ready for any of this. He had no idea what his new capabilities were, hadn’t tested any of them, didn’t understand how the tattoos worked,or what they represent or mean even. Fighting universe-level threats while still figuring out his basic abilities seemed like a poor strategy.

He needed time, space and chance to check his status screen and understand what he’d become.

The journey through the Infinite Dimension was quick. They exited back into normal space and the Voyager floated exactly where Liam had left it, the spacecraft’s systems in standby mode.

"Lucy, how long was I gone?" Liam asked.

"A few hours," she responded, her voice carrying relief. "Welcome back."

Liam turned to the Voidling. "Thank you for everything. I’ll visit soon, I promise."

The massive being’s eyes softened slightly. "I will be expecting you. Let me send you home properly."

"You can do that?"

"Of course."

The Voidling tore the space in front the Voyager. Then, it sent Liam into the spacecraft

"Fly through," the Voidling instructed. "You’ll exit in your solar system."

"Thank you once again," Liam grinned. "Lucy, take us home."

The Voyager’s systems activated, engines humming to life. The spacecraft moved forward, entering the tear smoothly. Reality twisted around them for a moment, then stabilized.

They emerged near Jupiter, the massive planet’s storms visible through the viewport.

Liam felt tension he hadn’t realized he was carrying drain away slightly.

"Set a course for Mars, Lucy," he instructed, before standing up from the captain’s chair and taking the elevator to his quarters.

"Yes, master," Lucy said in acknowledgement of Liam’s instruction.

***

A few minutes later, Liam settled into his bed and took a breath. Time to see what he’d become.

"System, status screen."