Inter soul transfer? You have a body?

{Notice: You have gained the Ultimate skill 『Subordinate』via ultimate skill 『Vengeance is mine』}

The system, Helix announced to Kim, as he stood there, observing the body of Diablos, and the blue burning flames that surrounded him.

{The Ultimate skill 『Subordinate』 has been linked to the 『Voice of the world』}.

Meanwhile Helix was working out the new level ups and skills, Kim found himself faced with a deep thought.

'The first time I killed a person… was a means for self defense. I needed to survive so killing him was my only choice.' Kim thought to himself, his eyes on the book, 'This happens to be a similar situation… if I didn't kill the demon lord, he would have killed me'.

He looked at his hands, 'I felt regret and fear the first time, didn't I? But this time… I don't feel a thing… I literally just took a life, and right now, rather than unease, I feel nothing... Am I losing my humanity?'.

The world around him suddenly seemed to blur as his thoughts swirled in a tumultuous storm. Then, like a whisper in the dark, an unexpected alert pierced through his reverie.

{Alert!

The angel of Chaos would like to proceed with inter soul transfer}.

'Uhn?' Kim titled his head to the side in confusion, his attention now piqued by the template in front of him.

{Would you like The angel of Chaos to proceed with the inter soul transfer?}.

"Uhmm…yeah, sure?".

{Request confirmed! Initializing inter soul transfer.}

Almost immediately, Kim felt a heavy thump in his chest that caused him to collapse to his knees. Confusion clouded his mind as he attempted to speak and ask Helix for guidance. Suddenly, a searing, bright red light erupted from within him.

"What the-"

Before he could utter another word, Kim was engulfed in agonizing pain as the intense light surged out of his body, cascading from his mouth and converging upon Diablo's lifeless form.

In a matter of moments, the crimson radiance completed its journey, seamlessly flowing from within Kim to envelop the inert form of the demon lord.

With a desperate gasp for air, the last remnants of the ethereal light exited Kim's parted lips, leaving him doubled over, throat constricted, as he struggled to draw in each labored breath, the residue of the transfer lingering in the air like a faint, ghostly whisper.

"The hell was that?! Helix!!!" Kim's voice ripped through the air, choked by coughs. His eyes fixated on the ground, knees planted firmly.

{Inter soul transfer.}

"What the actual hell is that?! And what left my body?! I swear to God if I feel even a tiny hint of…"

"Nice to see you again, My lord." Echoed the voice, cutting Kim short, its familiarity unsettling.

He slowly lifted his gaze, his eyes widening in disbelief at the sight before him. Standing there, in the flesh, was Ceil. Unlike her usual astro form, she was clothed in the burnt remnants of the demon lord Diablos's outfit.

Although most of the clothing has been so burnt off, her under boobs and thighs were lewdly exposed, that being said, she didn't seem to care.

"Ceil?" Kim blurted out, shock painted clearly across his features.

"Yes, my lord, in the flesh," Ceil replied, a smile playing on her lips as she bowed her head slightly before him.

"H-How," Kim stammered, disbelief evident in his voice. "I thought you said you didn't have enough energy to assist me in any way, and you couldn't maintain a form because of that?".

"Ah, yes, I did mention that." Ceil acknowledged, her smile calming, "That hasn't changed much. I still can't do much to help you as your angel unfortunately. That being said, thanks to this individual's high aptitude for magic… Their body can withstand the soul of an Angel. I simply made it my vessel of some sort".

Kim's eyes darted to the side, where the body of Diablos had vanished. 'She took over the body of the demon lord?'

"I understand you're confused. I really didn't spend time telling you a lot of things, and I still won't because you aren't ready," Ciel explained, her smile unwavering. "That being said, this should be a glorious moment for us. I can finally help you in battle as I was meant to."

"Honestly," Kim sighed, a sense of resignation washing over him. He rose to his feet, his expression calm but tinged with uncertainty. "I don't know what goes through that head of yours."

"Only one thing, my lord," Ceil declared, dropping to her knees with utmost reverence, her head bowed in respect. "Serving and making sure you become the next God of the modern-day era."

"Is that so?".

"It is," she affirmed without hesitation.

"Then I'll be counting on you, Ceil."

Her eyes shimmered with a faint glow as she whispered, "Long live the king of the North Star," a smile gracing her lips.

….

After their heartfelt exchange, the gateway resounded with the triumphant declaration of the Demon Lord Diablos's defeat. Before Kim's eyes, a chest manifested, its presence imposing yet inviting, with a holographic template hovering above it, announcing boldly: [Gate G-67 has been cleared].

Eager anticipation tingled through Kim as he approached the chest, its surface gleaming under the ethereal light. With a breathless sense of wonder, he opened it to reveal a dazzling array of treasures within.

Various gems twinkled like stars, crystals pulsated with potent energy, worth over a million zen in total. Weapon enhancements gleamed, promising newfound strength, while other resources whispered of untapped potential.

With a satisfied grin, Kim closed the chest, feeling the weight of his newfound riches settling within him. As he turned to leave, he cast a final glance back at the vanished entrance of the gateway, marveling at how easily it had disappeared, as if it had never existed at all.

But just as quickly as he stepped out of the gate, he was met with another familiar face, waiting for him in the outside world.

....

A/N

I apologise for the writing quality of this chapter