Reincarnated as an Energy with a System

Ning stopped scratching his thigh. "Wait what?" he exclaimed as he looked down at himself.

He had been scratching himself all this time but hadn't noticed why. He thought it was something normal that he was doing, but it turned out that he was not.

"Wait, the virus is trying to affect my body too? Is that why it's so damn itchy?" Ning asked.

<Yes>

<The virus is trying to destroy your flesh, but your body keeps regenerating.

"I'm not in any danger, right? Like that poison that destroyed my body?"

<No. You are perfectly safe, but you can switch to a different, non-living object if you want to get away from the feeling of itchiness>

"It's fine, I'll survive," Ning said and had to consciously stop himself from scratching again.

He zoomed his vision onto his skin and saw his skin wriggle as the virus destroyed it, and it regenerated back.

Ning had to force himself away from looking at it. "Now, let's get back to killing people. Give me a map with where all the zombies are."

<you do not have enough energy to buy such a map>

"Uhh… what about just this city for now?" Ning asked.

<that is possible>

"Good," Ning said and moved to a different location according to the new map he just got from the system.

He found a cluster of zombies and easily killed them. Then, he moved over to another cluster and killed them as well.

Air Cutter, which had become quite useless over the last few years without Ning putting a large amount of energy, was now the best thing in his arsenal for zombies that were simply weaker humans.

Day and night, Ning carved his way through the entire city, and once he was done, he moved on to another city.

There too he found quite a few zombies who he killed without taking any break. By the third day, Ning was starting to get annoyed.

By the 5th day, he was fully annoyed.

"Goddammit," he shouted while he stood on top of a building on the roof as many zombies crowded themselves around the building, trying to climb their way to him.

"Why are there so many zombies? Why couldn't they have simply died?" Ning shouted. "Urghh!!"

He was truly frustrated. "I think of myself as a patient man, but this is going to take way too long," Ning said. "How many are left again?"

<7,844,286,773>

"I barely put a dent in the number after killing them non-stop for 5 days? I really need to think of some other way to kill them that won't take so long," he said and go to thinking.

"Can I turn some of them into my subordinate? That way I can force them to kill each other instead," Ning said.

<Subordination Skill will only work on being with a mind>

<without a mind, you will have to spend a tremendous amount of energy to buy a new skill that dominates them>

"Tsk," Ning clicked his tongue. "And this place has no unique energy for me to make use of, huh? If only I could gain some sort of power and fight."

The system said nothing.

Ning continued thinking of ideas, and soon he thought of bombs.

"Right bomb, what if I dropped bombs on them? That could work right?" Ning asked. "Wait no, that would require me to create way too many bombs. Dammit, if only I could nuke this place from the stratosphere, I would be so happy. But it's not like I can do that."

<You can do that>

Ning had to stop his mind from thinking of something else and force it back to the previous topic when he heard the system.

"Wait, I can nuke them?" he asked. "Won't that cost me way too much energy?"

<Nuclear weapons do cost a lot, but you don't necessarily have to create them from scratch>

Ning's eyes widened with some hope. "Wait, are you saying that there are nukes in this place?" he asked.

Ning had remembered a lot about Earth once the system had bought him the memories back. As such, he was starting to know a lot of things that he would've forgotten.

One of which was the threat of nuclear attacks.

<yes, there are inactive nuclear weapons in this place>

A smile came upon Ning's face. "Good, give me the locations."

Ning disappeared from the rooftop and arrived inside what looked like a military base. He started directly in front of him at the nuclear missile that was ready to explode on command.

After learning a little about how to use them, Ning targeted this missile in one of the cities and launched it. The system assured that this would destroy almost all the zombies in that county and more.

Then, Ning moved to another missile and launched it too. And another, and another.

By the end, there were about 122 nuclear missiles, all headed to the major locations around the planet.

Ning teleported to the sky and looked down.

Soon, the fireworks began as mushroom clouds reached the sky. The flashes of light all around the world glowed so bright that it looked like it was daytime even on the night side.

Ning even felt the heat and shockwave all the way into the stratosphere from where he watched the nukes go off.

A solemn look appeared on his face as he asked, "Can… life grow back on this planet?"

<It's unlikely. This system's sun will explode before the radiation from the nuclear explosion disappears and life has a way to return>

"I see," Ning said. He waited for the clouds of debris to disappear and asked, "how many zombies are still left?"

<Zero>

A sad smile appeared on his face. "So many dead zombies," Ning thought. "So many people that I've killed. Hah, my kill count is in the billions now. I'm not going to get punished, am I?" Ning jokingly asked again, expecting the system to say no.

Instead, Ning saw two notifications pop up in front of him, and his vision immediately moved to the one that came afterward.

<The System is shutting down>