Esper Harem in the Apocalypse

Nyxia closed her eyes and puckered her lips, expecting to receive a kiss from Rudy, but all she got was a sharp, throbbing pain in her neck.

When she opened her eyes again, she realized that Rudy was sucking her blood at a crazy speed.

"....!"

She tried to push him back, but Rudy's grip on her was tight. Her legs eventually gave out, and her body grew weak.

When Rudy came back to his senses, he saw Nyxia passed out in his arms and blood dripping from her neck as well as his mouth.

"..." He moved his trembling hand to his mouth and wiped it to see it was smeared with blood.

Without wasting a single second, Rudy used his restoration ability and managed to bring Nyxia back to her normal condition.

He grabbed Nyxia and fell to the ground on his butt before placing her on his lap.

'What just happened?' he asked himself.

When he gulped down anxiously, he savored the taste of Nyxia's sweet blood, which made him want to drink more of it. So he licked his hips and wiped the blood from them with his tongue.

"I never knew blood could taste so delicious. And obviously, it wasn't my first time tasting blood. I had drunk my own blood many times when I got cut while making food, mostly at Elise's apartment. I have also tasted Elise's and mom's blood, so why did Nyxia's blood… no, why did I even drink it?"

Rudy couldn't comprehend the situation, and he didn't realize that he had grown fangs before he sucked her blood. But they turned normal once he stopped drinking her blood.

"I was going to kiss her on the lips, but before I knew it… I…"

Rudy lowered his gaze at Nyxia and rubbed her head, hoping she would wake up soon.

He looked at his hand and pointed it at the sky that was covered with clouds. He flicked his finger, and the clouds were razed to a certain extent.

'I knew it!'

"I no longer feel weak or exhausted. And even my powers returned. So… that's why my body urged me to drink Nyxia's blood?" he wondered.

"But how would drinking blood give me energy? If that was possible, I would have found an alternative to restore my powers after running out of my mental strength. Food or drink shouldn't possibly be able to do that.

It's just like eating or drinking something and suddenly getting six-pack abs without any hard work," he muttered in confusion.

'Come to think of it, I still don't know much about my powers and their origin. I am still not entirely convinced that I got these powers because of the supergene experiment. Because for that, the scientists would have needed to get their hands on the genes or something.

Or maybe they actually managed that? I am sure that these supernatural elements existed in my past life too, but I never encountered them as I lived a human life. So if the supergene is the reason behind my powers, why did I come to this world?

If I truly acquired powers after supergene, why did I die in my previous life, and why did I travel back in time?

There are so many questions I want answers to, and I think the best way to get them is to break into one of the secret supergene experiment facilities to know the truth. I should do that once I go back to the human world.'

Rudy was stroking Nyxia's head while thinking that, and he didn't realize that she had woken up.

"How dare you put me in such a disgraceful state!" she yelled with a glare in her eyes.

SIGH!

Rudy let out a sigh of relief and uttered, "I am glad you are alright."

"You are the one who did this to me!" she yelled.

"You sound so energetic for someone who was unconscious a few seconds ago," he remarked.

"Again, that was you!"

"I need answers. Since you claim to be so knowledgeable, tell me, why did I suck your blood?" Rudy asked sincerely.

"You didn't just suck my blood, you sucked my vitality too. If you hadn't regained your senses at the right time, you might have killed me."

"..." Rudy took a deep breath and asked, "Please tell me you are joking."

"I am not."

"So… why did I do that?"

"Why do humans drink water?" Nyxia asked with a knowing look on her face.

"Because they feel thirsty?"

"And why do they eat?"

"Because they feel hungry?"

"It's the same for every race in the universe. You, or rather your body, or should I say your powers, wanted to be fed on something that could recharge them instantly. Hence they forced you to suck my vitality," Nyxia asserted.

"This has never happened before, so I had no idea. But I guess I should be careful from now on." Rudy raised his brow and asked, "Uhh… does that mean I can attack a fellow human too?"

"Yeah. They also have vitality, but not as much as the other races. So if this happens in a human world, you would probably kill a few dozen to get your powers recharged," she stated in a solemn voice. "You even grew fangs to suck my blood."

"What?!" he exclaimed.

"They are back to normal now, though."

"Hmm. Actually, this isn't the first time my powers have changed my body physically. I grew long hair too, so I guess growing fangs wouldn't make a difference. But I am glad they are back to normal."

"Kissing would be a pain in the ass with long fangs," he added. "Vampires' fangs also turn back to normal unless they are drinking blood.

"But I do want to get a blowjob with long fangs…" he muttered with a serious look on his face. "I wonder if it would hurt."

"Uhh…" Nyxia let out a sigh in disbelief and uttered, "Are you always like this?

"I am genuinely curious, that's all." He shrugged his shoulders and asked, "Anyway, is there any way to stop that?"