The blade of magical plasma, constrained by a magnetic field, easily pierced Ryunosuke Uryuu's abdomen, leaving a penetrating indentation in the concrete floor beneath him.

Since the mission prompt required him to be paid back in his own coin, Chen Yu naturally wouldn't let Ryunosuke Uryuu die so easily.

Under the intense and rapid movement of the magical plasma, a scorching smell emanated from Ryunosuke Uryuu's abdomen.

The extreme high temperature from the light blade instantly charred Ryunosuke Uryuu's abdomen.

Chen Yu retracted the light sword, looked at Ryunosuke Uryuu, who was starting to roll his eyes under the Full Body-Bind Curse, and then lifted the spell from him.

The moment the spell was removed, Ryunosuke Uryuu immediately arched his body like a thoroughly cooked shrimp.

Every inch of skin, every nerve in Ryunosuke Uryuu's abdomen screamed and wailed.

"Who... who... are you?"

Perhaps Ryunosuke Uryuu was just an ordinary person, but he did possess a will that ordinary people lacked.

Under the intense pain and the threat of death, he was actually able to maintain a relatively clear consciousness, trembling as he asked the question in his heart.

"Is... is it a demon? Is it... dissatisfied... with the offerings... I presented..."

Chen Yu's ability to freeze him and teleport him instantly made Ryunosuke Uryuu mistakenly believe that Chen Yu was a demon from hell, dissatisfied with his offerings.

After all, Ryunosuke Uryuu had never encountered a Magus before, nor did he know Chen Yu's identity as a Wizard. His understanding of demons relied solely on fragmented records in old books.

As for the opponent's childish appearance, Ryunosuke Uryuu believed that demons in hell could transform into any shape, and it was not uncommon for them to appear as children to tempt humans.

Ryunosuke Uryuu tried to struggle into a sitting position, but with two segments of his spine missing, he no longer had the ability to sit up. He struggled a few times and then lay back down.

"Hahahahaha, demons, there really are demons in this world! I didn't expect that even an incomplete magic circle could summon a demon..."

When Ryunosuke Uryuu fantasized that the person standing before him was a demon he had summoned, he became excited again, even ignoring the pain in his body and laughing maniacally.

"Mr. Demon, when were you summoned by me?"

"Was it the first... the second... or the third sacrifice?"

"Are you displeased with the offerings I presented, or was my method of sacrifice incorrect, which led to your dissatisfaction?"

"But I apologize, Mr. Demon. Who told me I was just an amateur? Magic circles and the like from occult studies were just copied by rote... cough cough cough cough."

The shaking of his body and his frenzied words caused the wounds inside Ryunosuke Uryuu to tear open again. A mouthful of fresh blood gushed from his mouth, choking him and making him cough.

He instinctively covered the corner of his mouth, realizing what was about to gush out, and then lifted his hand, staring blankly at his hand stained crimson.

"Wow..."

Red... pure red.

Ryunosuke Uryuu had always observed death, sought death, understood death, but had never thought of understanding his own death.

Ah ah ah... this is it—Ryunosuke Uryuu instantly realized what was on his hand, and a relieved smile appeared on his twisted, pale lips.

Feeling his body growing weaker, countless fragments of memory flooded his mind, and he couldn't help but recall the feeling from when he killed his first person.

He gently stroked his abdomen, his eyes fixed on his other hand, which was soaked in blood.

This was the satisfactory red he had been desperately searching for, repeatedly looking for but never finding.

It had been hidden within his own body all along.

What a perfect color of death.

"So that's how it is... no wonder I couldn't find it no matter how hard I looked..."

"As expected of Mr. Demon, you easily allowed me to find what I had been searching for all this time..."

Chen Yu watched Ryunosuke Uryuu, who went from pain to relief, and finally, a happy smile appeared at the corner of his mouth. He couldn't help but sigh that the thought process of a serial killer was indeed bizarre.

But Chen Yu didn't want Ryunosuke Uryuu to die so easily and happily.

A murderer who had forty-plus lives on his hands; since Chen Yu had encountered him, he wouldn't get off lightly.

"Ryunosuke, you're mistaken. First, I'm not some demon you summoned. I'm just a passing Wizard who helps when I see injustice."

"Second, I won't let you die so easily."

Chen Yu raised his wand and, for the first time, used the second unforgivable curse, the Crucio, on a human.

"Crucio!"

Instantly, Ryunosuke Uryuu felt a pain in his body as if thousands of sharp blades were simultaneously drilling into his bones and heart.

His previously relieved face twisted again.

He clearly felt every bone and every organ in his body being tormented by the spell.

The pain caused by the spell easily surpassed the upper limit of pain caused by nerves. His breathing became more rapid, the intense pain made his eyeballs protrude, veins bulged on his forehead, and his face was distorted like a ghoul that had crawled out of hell.

The pain in his body made Ryunosuke Uryuu constantly writhe.

Snot and tears flowed from his nose and eyes, and he wailed in agony, no longer composed as before.

Ryunosuke Uryuu struggled for over ten minutes, his constantly twisting body tearing his wounds open again, causing blood to gush out from them.

In his painful struggle, this serial killer, who had caused over forty tragic cases, finally died in extreme agony.

The blood gushing from his wounds automatically drew a complex magic circle pattern on the ground.

【Congratulations, Player, on completing the side quest: The Midnight Killer's End】

【Quest Reward: Three Command Spells】

As Ryunosuke Uryuu died, Chen Yu felt a slight prickling sensation in his hand, and three crimson Command spells appeared on the back of his right hand.

Looking at the Command spells on his hand, Chen Yu felt a little happy.

He finally got his ticket to the Holy Grail War.

It was just the appearance of the Command spells that Chen Yu disliked a bit.

A small flying wing on the left, a small flying wing on the right, plus a heart-shaped pattern in the middle.

Fortunately, the Command spells wouldn't appear on his abdomen, otherwise, it would look perfectly like a 【BEEP】 tattoo.

Chen Yu used a Cleaning Charm to clear away the unsightly corpse on the ground, placed the wand containing the Nine-Tailed Fox's hair on the ground, and used it as a holy relic.

Daji, Tamamo-no-Mae, Yakumo Ran, Tu Shan Yaya, Jiuyue... any Nine-Tailed Fox would do.

【Please stand in the center of the magic circle and chant the Heroic Spirit summoning incantation. The system will automatically scan the holy relics in the player's system backpack and match a Heroic Spirit for the player.】

It's scanning the system backpack and requiring me to stand in the center of the magic circle?

He wasn't a holy widow, so why did he have to stand in the center of the magic circle?

Chen Yu didn't understand what the system was up to, but hearing the system's prompt, Chen Yu still picked up the wand from the ground, immediately put it into his backpack, and obediently walked to the center of the magic circle.

Looking at the Heroic Spirit summoning incantation provided by the system, he solemnly read the text aloud:

"Fill, fill, fill, fill, fill!" (Charge quickly, charge quickly, charge quickly, charge quickly, charge quickly!)

As Chen Yu spoke, the magic circle on the ground began to emit light.

"Repeating five times!" (Need to fully charge the magic circuits of all 5 magic circles)

"And when it is filled, it is the time for discarding." (When the magic power is full, it is when the magic circuit begins to oscillate)

With these words, the magic circle on the ground glowed brightly.

The previous part was just to charge the magic circle; now came the actual incantation for summoning a Heroic Spirit.

Chen Yu took a deep breath and declared loudly again:

"—Hear ye!" (Ahem... Listen up, everyone in the Throne of Heroes!)

"Thy body shall be beneath my command; my fate shall be upon thy sword."(I give you magic power, you work for me.)

"Answer the call of the Holy Grail, obey this will, this reason, and respond to me!" (Those summoned by the Holy Grail, those who can hear, and those whose opinions are similar to mine, give a sign...)

"I am the one who accomplishes all good deeds in the world, I am the one who embodies all evil in the world!" (Let's be clear, I might do good deeds, or I might not.)

"Entwine the seven heavens of the three great incantations," (I have three Command spells, and I need you to obey me for about seven days,)

"Emerge from the wheel of suppression, Guardian of the Scales!" (I won't reimburse your travel expenses to get here, you figure it out yourself. These are the conditions, no shady dealings, the final interpretation right belongs to the Holy Grail.)

After chanting the Heroic Spirit summoning incantation, Chen Yu always felt that summoning a Heroic Spirit was like signing a recruitment contract, where the Heroic Spirit's tasks, post-completion rewards, and the means of constraint needed to be clearly stated upfront.

Although it wasn't a Magus who summoned the Heroic Spirit, but the Holy Grail's magic power, the Master merely served as a link between the Heroic Spirit and this world, only needing to provide the magic power for the Heroic Spirit to materialize in this world.

But Chen Yu still felt the magic power within his body violently boiling and rapidly flowing to an unknown place.

Lightning flashed, thunder roared, and winds swirled.

The strong winds composed of magic power ruffled Chen Yu's clothes, and the summoning magic circle also shone with brilliant light.

【Detected holy relics in the system backpack that can be used: "Misaka Mikoto's Coin", "Trapezohedron", "Witch Sequence 6-9 Potion", "Obelisk the Tormentor Card", "Gabriel's Gift"】

【The system is sending invitations to the targets.】

Seeing the Trapezohedron listed in the system prompt, Chen Yu's face instantly turned green.

How could he forget to take that thing out beforehand? Now it's being used as a holy relic.

As for the "Nezuko's Chewed Bamboo", "Memory Bread", "master ball", and a whole bunch of other items he had drawn before, they were basically all in the Serenitea Pot, so they weren't scanned by the system.

Food items like "Icarus's Watermelon", "A Bag of Taiyaki", and "Yoshiko's Banana" had long been eaten by Chen Yu and Suigintou.

And speaking of which, Icarus's watermelon was indeed very sweet.

【Atum feels confused, but accepts the player's invitation】

【Tris Chick feels curious and accepts the player's invitation】

【Gabriel is very angry, rejects the player's invitation, and hopes the player can return the holy relic】

【Misaka Mikoto feels curious and accepts the player's invitation】

【Single-plane traversal channel is linking, contract is being drafted and selected...】

【Warning! Warning! Warning! Affected by unknown forces, the contract target has been corrected...】

【Contract target corrected to Nyarlai Yutos】

【Nyarlai Yutos joyfully accepts the player's invitation. Please prepare to receive her immediately...】

When the magic circle's circuits connected with a non-human realm... from the continuously overflowing dazzling light, a white figure appeared.

Standing on the magic circle was a beautiful, full-figured, white-haired, purple-eyed young girl who looked like a succubus, wearing a very seductive purple leotard, with ram-like horns on her head, two braided pigtails, and bat wings on her tailbone.

She stood on the magic circle, making a classic Rider transformation pose, and energetically introduced herself.

"I am the chaos that always smiles and sneaks up to you, and also the librarian who knows everything and nothing."

"Nyarlai Yutos reporting for duty!"

Silence... Silence... Silence was the Cambridge of this evening.

Looking at the beautiful, almost unreal demon girl standing before him, and then seeing the system's prompt with Nyarlathotep's true name, Chen Yu felt he had the right to remain silent.

Did Nyarlathotep cheat, or did Yog-Sothoth stray?

For a moment, Chen Yu didn't know what on earth he had summoned.

He could only say that this true name was simply awesome.

【Name: Nyarlai Yutos】

【Contractor: Chen Yu】

【Gender: Female】

【Race: Lesser Evil God】

【Class: Caster】

【Height/Weight: 160cm 49kg】

【Attribute: Chaos · Neutral】

【Strength (Physical strength): B+】

【Endurance (Ability to withstand damage): A】

【Agility (Agility, reaction speed): A】

【Magic Power (Amount of magic power that can be controlled): A++】

【Luck (Good or bad luck): B】

【noble phantasm (Strength of owned noble phantasm): A++】

【Special Abilities:】

【Outer Domain Life A: A descender from outer cosmos, the void, a body personally created by ▆ ▆ ▆ ▆ ▆ ▆, who has the authority of ▆ ▆ ▆ ▆ ▆ ▆ residing within her and utilizes it.】

【Divinity B: The ▆ ▆ ▆ ▆ ▆ lurking in the outer cosmos, possessing strong divinity, and an inestimable threat capable of rewriting the world's appearance.】

【Inherent Skills】

【Unspeakable Form A: No one can directly face Nyarlathotep's true form, thus no one can glimpse Nyarlathotep's true information.】

【Aberrant Summoning: Twisted Horror C: Opens an interdimensional rift, summons the familiar of ▆ ▆ ▆ ▆ ▆, and commands it to battle.】

【Forbidden Feast A+: Nyarlathotep opens a huge dimensional gate in the air and transforms into mud and mist covering the ground. At this time, enemies will be attracted to the player's designated location and enter a restrained state, while the interdimensional gate will perform dimensional bombardment on the ground.】

【This is the Moment of Ascension EX: Equips the Chaos Source Stone to release true form ▆ ▆ ▆ ▆ ▆ ▆】

【Owned noble phantasms:】

【Chaos Source Stone A++】

【Whip of Aberration B+】

...

Looking at Nyarlai's partial true information, which only he could see, and facing the beautiful, almost unreal demon girl, Chen Yu felt a sense of powerlessness from his soul for the first time.

To flee or to run, that was a question of survival.