Across the heavens, I am the Avatar Sword Master

The so-called "self-enforced certificate" is a spell contract used by magicians in the "Type-Moon World" when concluding an agreement that cannot be violated. It is the most absolute guarantee made to prevent breach of contract.

The contract is usually carried on a parchment scroll and includes the binding technique, the bound object, the formal content of the oath, the conditions for fulfilling the oath, the signature of the oath-taker (the bound person), etc.

In the intrigue-ridden world of magicians, this is one of the most ruthless contract spells used to make an agreement that cannot be violated.

The curse of "compulsion" is imposed on the caster using the power of his own magic seal, and in principle, its effect cannot be removed by any means.

Once the magician signs the certificate and fulfills the oath conditions to make the certificate effective, even if the oath-taker is dead, as long as the magic seal is passed on to the next generation, even the soul after death will be bound.

It's like a contract that will not be violated.

Facing Chen Yu's gaze, old man Yubusta Kuhaid did not hesitate at all. He walked a few steps from behind Chen Yu, walked to an old desk, opened the drawer, and took out a roll of yellowed parchment and a feather pen.

He unfolded the parchment, dipped his shaking hand into the ink, and began to write on it.

Under the dim light, the expression on his wrinkled face was complicated and difficult to discern.

Although Chen Yu decided to let Irisviel be the head of the Einzbern family and forced himself to sign a self-enforced certificate of loyalty to Irisviel.

But after all, Irisviel is still a member of the Einzbern family, which is like meat rotten in the pot.

But when he thought that he would eventually have to step down as the head of the Einzbern family, he still felt unwilling.

The quill rustled on the parchment, and every word seemed to be engraved on Yubus Taquhayid's heart.

He wrote very slowly, as if every word weighed a thousand pounds.

Irisviel stood quietly by, watching this scene, feeling mixed emotions.

She didn't understand why things turned out this way, but she knew she had no choice.

A few minutes later, Yubusta Kuhaid finished writing the certificate, put down the quill, picked up the certificate, and handed it to Aliceviel respectfully, "Alice, please take a look."

Although to others, in the eyes of bystanders, the contents of the parchment looked like a series of incomprehensible patterns and symbols arranged together.

But to Irisviel, the parchment was filled with various clauses written in ancient magical language.

Irisviel took the certificate and read it carefully.

Binding Ritual: Subject: Eubusta Kuhaid von Einzbern

According to the seal of Yubusta Kuhaid: Subject to the following conditions: the oath will become the object of the commandment, without exception:

Oath: The puppet Eubustakuhaid, the father of the artificial humans created by Einzbern, Eubustakuhaid von Einzbern is loyal to Irisviel von Einzbern and will always support Irisviel von Einzbern to become the current head of the Einzbern family.

Condition: None

Irisviel carefully examined the contents of the parchment, her brows slightly furrowed.

There are no additional conditions in the oath. Will Yubusta Kuhaid really unconditionally support her to become the head of the family?

This is obviously not in line with the style of this old fox.

She looked up at Yubusta Kuhayid and saw that the old man had his head lowered and his face was uncertain.

She knew in her heart that the other party must be hindered by Chen Yu's power and did not dare to add any conditions that would benefit them into the oath.

"Is there any problem?" Chen Yu's voice interrupted her thoughts.

Irisviel shook her head gently: "No problem."

Standing aside, Emiya Kiritsugu's eyes flickered.

As an experienced magician killer, he immediately saw the loophole in this oath.

But he did not open his mouth to remind her, because he knew very well that as long as Irisviel held the power of the family, it would not be difficult to deal with a Yubusta Kuhaid.

If he wasn't worried that the other party would hurt Illya, with his ability, he could even uproot the entire Einzbern family.

On the contrary, cooperating with an unfathomable being like Chen Yu is more worrying.

"Since there is no problem, then sign it." Chen Yu said, waving his hand impatiently, "Don't look at me like this, I'm actually quite busy."

Irisviel took the quill handed to her by Ubusta Kuhaid and dipped it in ink.

Her slender fingers trembled slightly as she wrote the words "Irisviel von Einzbern" at the bottom of the parchment.

"The contract is made."

Chen Yu said lightly, his voice echoing in the silent room.

Irisviel stared at the flickering magical patterns on the parchment, mixed emotions welling up in her heart.

At this moment, she truly became the head of the Einzbern family.

Even an artificial human cannot break a pledge.

Kiritsugu Emiya's eyes moved back and forth between Eubusta Kuhaid and Chen Yu, his fingers unconsciously stroking the holster.

Under the dim light, there seemed to be shadows twisting and changing on the wall.

There was a heavy sense of depression in the air, as if a silent war was about to break out.

Yubusta Kuhaid stood up slowly, with an elusive light flashing in his eyes.

"Now you are the head of Einzbern."

His voice was hoarse and low.

Irisviel clenched the parchment in her hand. She could feel the residual warmth of magic on it.

Chen Yu issued an order to expel the guests.

Irisviel held Illya in her arms and left the library with Emiya Kiritsugu.

Old man Yubusta Kuhayid was also expelled.

The only sounds in the entire library were the rustling of Chen Yu flipping through pages and Norbert yawning out of boredom at the door.

------

As the night deepened, moonlight shone through the window lattice onto the floor of Illya's room, casting mottled shadows.

After returning from the library, Emiya Kiritsugu and Irisviel played with Illya in the room for a while.

Illya fell asleep unknowingly while playing.

Irisviel stood in front of the window and gently placed the sleeping Illya on the bed. The soft blanket made a slight rustling sound.

The silver moonlight shone on Illya's pale face, and her peaceful sleeping face made Irisviel's heart ache slightly.

"From now on, everything will be different," Irisviel whispered, her fingertips gently brushing through Illya's hair.

The room was filled with a faint rose scent, which was Illya's favorite aromatherapy.

"It's incredible. I originally just wanted to take Illya and escape from here, but now I have become the head of the family." Irisviel turned and looked out the window.

The snow-capped mountains in the distance glowed silvery white under the moonlight, and the cold wind blew through the treetops, making a rustling sound.

Emiya Kiritsugu leaned against the door frame, the cigarette box in his hand deformed by his grip.

"Ellie, are you really going to give up on obtaining the Holy Grail?"

Kiritsugu's voice was low and hoarse.

Irisviel's fingers gently stroked the frost on the windowsill, and the cold touch made her more awake.

"This is not giving up, but choosing. I choose Illya's future."

In the moonlight, her silver hair shone with a soft luster, and her eyes were firm and gentle.

“Einzbern has been pursuing the dream for a thousand years, and now…” Kiritsugu has not finished his words.

"A thousand-year dream is not as good as a smile from Illya." Irisviel interrupted him.

The wind outside the window grew stronger, blowing the curtains gently.

"I will make Illya a true human being, no longer bound by the fate of the Holy Grail."

Irisviel’s voice was firm.

Kiritsugu nodded silently and put the unlit cigarette in his hand back into his pocket.

The fireplace in the room crackled softly, and warm flames danced on the walls.

“But Yubusta Kuhayid will not give up easily.”

A hint of vigilance flashed in Kiritsugu's eyes.

"I know this is just the beginning. But with such a big advantage, I don't think I will lose to the old man."

Irisviel walked to Illya's bed and gently tucked the quilt in for her.

"As the head of the family, I have to face more challenges. But as long as I can protect Illya, it's all worth it."

Illya turned over in her sleep and murmured softly.

Irisviel leaned over and placed a soft kiss on her forehead, "Good night, my little princess."

Snowflakes began to fall outside the window, adding a bit of tranquility to this sleepless night.