[1 day before the start of the Holy Grail war]
Atop the hill in Fuyuki City, there was a Cathedral. It was left abandoned for almost 100 years, but recently someone bought it and started repairing it. To everyone's surprise, the Cathedral was fixed in less than a month. Some say it was magic, while the ones who knew about the secret side of the world knew it was magic.
Naturally, this Cathedral was the one Impulse took residence in with Masaru. He used the money he stole to officially buy the land before making all 667 Kree, including C-4, he created in the basement to repair it. It was supposed to be 1,000 Krees if all the subjects were successful, but sadly, 333 died during the transformation.
Inside the grand Cathedral, Impulse stood at the altar, looking down at the magic circle before him, the one used to summon a servant to fight in the Grail War. The war was starting in one day, and he wasn't chosen as a master. So he decided to attempt a summoning without the help of the Grail. Though he is sure it wouldn't work, there is no harm in trying.
"In order to summon a servant, you need some relics to serve as a catalyst. And I have none." Impulse said to himself. After some thought, he shrugged. "Using a Pseudo-catalyst should do."
Pseudo-catalyst is formed by utilizing jewel magic to store magical energy into three quartz prisms. The magus begins by storing magical energy into each fragment while infusing one with a strong desire, the other with a wish, and the last with a legend. When all three prisms charge, they will draw towards each other, distributing their mana evenly against each other and combining into a Greater quartz prism.
He found this wasting a grand total of 21 billion dollars, which he stole, to buy information on summoning and the Holy Grail War.
"Well, I am proficient in jewel magic, so I should be able to do it." Impulse mumbled, walking to the back of the altar.
Using the entrance in the back of the altar, he went down to the basement and searched through his collection of jewels. Thankfully, he found three quartz prisms, so he began the ritual.
He filled the first quartz prisms with the desire for Immortality. Although he didn't know if it should be the desire of the servant or his, he didn't care. After all, he is trying to summon himself.
In the second quartz prisms, he infused it with the wish of ultimate power. Ultimate power isn't something he wishes for, but he already used Immortality for desire, so he had to do something different.
The last was a legend. This part was the hardest. What Legend would be passed down for generations if he were to become a legend? What's written in his record in the Library?
"I should have read it." Impulse sighed in frustration. There was nothing to do but come up with something worth noting. And that was destroying two Earths. One when he went to an alternate timeline and the other when he slept.
After finishing it, all three rose into the air, rotating around each other as they evenly distributed the magical energy. Then combined with a bright blinding light, which Impulse didn't notice due to having on his blindfold.
They combined into a Greater quartz prism with multiple colors flowing through it. Catching it from falling, Impulse smiled at its succession. Placing the Greater quartz prism in the middle of the magic circle, he stood back and started chanting,
"Έγραψε τον δικό μου μύθο. Ένα ον που λαχταρούσε την Αθανασία. Μια επιθυμία που είναι πιο δυνατή από οτιδήποτε. Καταστροφέας πλανητών. Ένας ψεύτικος θεός. Το πλησιέστερο είναι στη Βιβλιοθήκη των Ηρώων. Σε καλώ. Εξυπηρετήστε τον αληθινό εαυτό σας!" Impulse shouted, opening his arm, a wide grin plastered on his face. He doesn't know why he said the incarnation in Greek, but it naturally came out that way.
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Blue eyes. That's what she remembered about the person that caused her power to fail. It wasn't enough, of course—nothing would compare to the pleasure of consuming him under her—but he was no longer within the palm of her hand.
Kiara Sessyoin had been so close to the enlightenment she sought. So close to becoming one with Earth. So very close to the heavenly pleasure she wished to enjoy and for all of humanity to partake. And yet, it failed due to that man and his servants.
As she was about to die, she felt doubt for the first time in her life and chose to produce an Alter Ego of herself. Hoping someone would summon her. In this form, her power is just a fragment of her true self. But with it, she can continue her plan.
That's when a voice came. A voice calling her to serve her true self? The request made her giggle. But, she decided to answer the call.
Her whole being was pulled toward the voice as she appeared in a Cathedral. 'My master even had the decency to create a base for me.' She thought, looking at the man standing before her.
It was a tall man with white hair that spiked up. His eyes were covered with a black blindfold, wearing an all-black high-necked jacket with matching pants and dark dress boots. He raised his blindfold to stare at her with beautiful eyes that constantly changed color.
"The fuck is this shit!?" He shouted, pulling off his blindfold and throwing it to the ground. "How the actual fuck did I summon a nun when I specialized the Pseudo-catalyst and Incantation to fit myself-" He stopped to look at the area with a stream of tears coming down one of his eyes. "I-it can't be..." He said to himself, stumbling back.
Her master's reaction amused her. It seemed like he intended to summon someone else. It made her giggle. She wanted to know him more. Using her Clairvoyance, she looked at the man's true nature...
"~Haaang~" A loud moan of pleasure escaped her mouth, her legs becoming weak, causing her to fall on her knee.
This man. This man in front of her is a monster. His brutality. His lack of care of humanity as a whole. The darkness he is. All these aroused her beyond anything she has ever seen.
She wondered how it would feel to devour him. What pleasure would it bring her? She wanted to jump on him and devour him now. But she held back. 'No. Not yet. He would help me with my plan. If he becomes corrupted by my temptations, it would be even better.' Pushing back her desire as she looked up at her master, staring at her with his beautiful eyes, his face filled with confusion.
Suddenly, the door leading to the Cathedral opened, and two beings walked in. The first is a slim, fair-skinned man with dark blue eyes and dark circles around his eyes. He has messy silver hair of varying lengths and wore plain red sneakers with black pants which expose his ankles, a matching long-sleeved v-neck shirt, and a plain black jacket.
The second is a handsome man, standing about 6'1", with a lean yet muscular body, gelled back silver hair, and bright amber eyes. He wore a black, luxurious suit with black dress shoes, black gloves, a black tie, and a white undershirt.
"Enemies." She said to herself. She was about to use her Clairvoyance on the two newcomers, but the second man suddenly disappeared and reappeared in front of her master. 'No!'
As she stood up, a powerful pressure came down on her, slamming her to the ground. She was about to cast Human Order Ascension Ritual, the second newcomer voice came.
"Just watch." It said,
Hearing that, she looked up to see her master staring up at the man, who was staring down at him. Now they were next to each other she noticed they looked at each other only one was older.
"Who are you?" The man asked, his voice devoid of all emotions.
"I am..." Her master paused, thinking of something, then he continued. "The real you."
DaoOfLewdness explained to me why Enternity is better than Immortality, so I decided to change the Title and Impulse's goal.
If you want to know more about Enternity, check out Eternity Embodiment in Superpower Wiki.