The Spirit was taken aback by Eren's words. She took a step back and began looking around suspiciously.

His statement, though it sounded absurd, made her believe he might have a way to harm her. She couldn't risk calling his bluff.

"Don't go too far!" The Spirit, devoid of her former godly grace, looked genuinely scared. She had thought that revealing her true identity would intimidate Eren, but the man didn't seem to care in the slightest.

"Are you scared?" Eren retrieved a small object from his inventory. It was a mere dagger, one that looked broken and incomplete.

"That is…"

It was a dagger most people wouldn't recognize, but one could still see that it was special. It even held faint traces of the Goddess of Light, who had conquered the Western Continent through her schemes.

There was also something even more extraordinary that even she couldn't recognise. It had an overwhelming aura that even the goddess of light didn't have at her peak. It was as if this dagger had drunk the blood of gods.

It was something that only those who were truly strong themselves could see. To others, the dagger looked ordinary, and most couldn't sense its divinity.

However, the spiritual conscience of a god could see the powerful bloodlust being forcefully kept at bay within the blade.

She had heard of such a weapon but never expected it to end up in Eren's hands. She had heard that it was a weapon being created by the false Priestess.

She had even heard that if the dagger were allowed to drink more blood and devour the souls of millions, it could evolve into a peerless weapon even more extraordinary.

This was the Overlord Killing Dagger, a weapon being created by the False Priestess with the help of the Temple of Light. It was so named because, once completed, it could allow an ordinary person to kill an Overlord.

The true secret behind it, however, was its ability to destroy the divine blessings that allowed Overlords to surpass the limits of humanity. In simpler terms, it was a dagger that could obliterate divine soul fragments, or anything of a similar nature, upon contact.

It was a weapon that could change the balance of this lower world, but only if it was completed. If finished, it would be a highly valued item even in the Upper Realm.

That was what it used to be in the past. But now, it felt like it was not only completed but even surpassed its tier.

"Looking at your reaction, I suppose you know what this is?"

Eren had used a valuable question voucher to ask the author about this dagger in the past. When he had learned the method to complete it, he had almost given up hope.

He couldn't sacrifice millions of souls without attracting the attention of other worlds. There was also an unknown beast at the bottom of the boundary river that even he didn't want to face.

If he were to bathe this world in rivers of blood to complete the dagger, that existence would definitely be alerted and emerge to stop him.

There were many problems with its completion, but he had been given an unexpected opportunity. It was a small gift left behind by his other self.

Eren didn't know how his future self had done it, but in the brief moment he was possessed, the dagger had been almost completed.

Eren didn't know how many people, if any, he had killed while possessed. Was that the reason his future self had asked him to leave the Upper Realm? He didn't know.

The only thing he knew was that the dagger was quite useful to him. It was meant to cut off the connection with the Upper World and free this world from unwanted observation. But before that, he would use this dagger to send a message.

Eren's fingers brushed against the sharp edge of the dagger, which was still missing something. It had absorbed the blood of the dead, but it still felt incomplete.

What Eren didn't know was that the dagger had been brought to near completion by his future self in the graveyard of the ancient clan in the hidden realm.

The dagger had drunk the blood of the recently deceased clan members. Their blood was so pure that a small amount was comparable to the millions of gallons that would have been needed in the lower world.

At the sight of the dagger, the spirit understood why Eren was so confident. He didn't just have his demigod strength; he also had this weapon.

At this point, the spirit couldn't gather any courage. She could try to split the space apart and escape, but there was no guarantee that she wasn't going to be cut in two halves.

If she died with this dagger, then her soul was going to be trapped forever, suffering in agony. It was even worse than being a guardian spirit.

The Holy Priestess told the goddess that they didn't need to be scared. They could still fight back and that she was willing to sacrifice her life, but the goddess had already lost her fighting spirit.

She fell on her knees, her body shivering uncontrollably. She surrendered to Eren and accepted his condition. She was willing to become his Guardian Spirit.

Thus, Eren received another hidden card, one that was connected to the Upper Realm and knew more about this lower world than him.

The Holy Priestess lost all her divine powers after the Soul of the Goddess was taken by Eren as his spirit, which granted him another guardian spirit mark.

The Holy Priestess still had her skills and her magical powers, but she couldn't see any hope either. If even the goddess couldn't fight this man, then how could she?

She told Eren that she was also willing to surrender and dropped to her knees. She believed that she could also be useful to Eren.

Her thoughts didn't last long as she felt a sword stab through her chest.

"Sorry, but you're more useful to me dead than alive."

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