I do not own the Fate series and Tsukihime. The credit goes to Kinoko Nasu, Kagetsu Tohya, TYPE-MOON, and Aniplex. I only own the OCs. Please support the original works.


I want to say a few things before you continue reading my fanfic. 1) Thank you for reading my fic. I never thought it would get over ten likes, follows, and 900 views when I made this. 2) I'm trying to have a consent upload schedule for this series because my first reason for thinking this fic would become interesting for people to read. Before I go into a rant, I want to repeat it. Thank you for taking the time of your day to read this story.


In a warehouse in the middle of a marsh, this one looked unkempt on the outside, yet on the inside, it was habitable. A younger version of Mortem who's talking with a horned person.

The horned person was an Oni. Their claws were out and flashing their fangs whenever they talked. Their appearance would be frightening to any humans approaching them, even if their form resembled a human. However, what was most striking was their eyes, a shade of blue. If one looks past that ocean of cerulean, you'll see a deep shade of crimson in the center.

Their eyes were of the mystic variety. If the modern mage were to grade them, it would be either gold or jewel, depending on the circumstance, but considering only an Oni of their clan could use them would render them useless to any human mage of the modern era.

"Hey, Mortem~" The silky smooth voice of the Oni was intoxicating, a form of charisma used to charm humans and toys with their emotions. "You wouldn't have happened to change your mind about my offer, now would you~?"

This Oni, no, this demon in the form of a not-so-docile preteen. Their presence brings fear and dread of being killed or eaten, probably both, while the family watches in horror.

"No. Can you stop using your Mystic Eyes and honeyed words on me, please," Mortem pleaded. "You know they don't work on me, especially when you act like that." the Oni pouted as he continued. "I called you over because I need to do something for me."

"And what do I get in return?" The Oni questioned the voice that seemed to ooze charisma was gone and replaced with something sounding rougher but still sounding feminine. Mortem was trying his hardest not to roll his eyes.

"Let's see. If you do this, you continue to stay in my warehouse, food, and alcohol, and oh, the big one, more candy and treats." The Oni visibly shuddered but kept a strong face. "And on the abysmal chance you cannot complete this task, you'll be forcibly removed from the premises," Mortem warned, opening the palm of his hand and releasing some of his energy.

"You are demanding. You know that, right? You always demand these things from me and Oni? How do you know I'll complete the request you gave me? Or better the question, how do you know I'll mess up along the way like I always do?" The Oni said while taking a seat on the nearest chair.

"Because I trust you," Mortem said effortlessly. The Oni was stupified, but Mortem continued. "I trust you with my life, and you are one of my close friends despite what others might say."

The Oni turned away from Mortem to hide their embarrassed face. The Oni couldn't take praise from him without turning them into a maiden. Though they were a monster, they were terrified of Mortem, not because of his power or intellect, though impressive, but rather his patience and acceptance. His ability to gather people of all shapes and sizes.

He worked with an actual demon of all people, and not once over their time together did he look at the Oni with a look of disgust or fear.

What tied it all together was his humbleness and how down-to-earth he was.

It made them feel good in ways the Oni couldn't describe, and that Oni aspect of taking what they desired every meeting with Mortem became one of willpower. This moment, in particular, was one where their instincts screamed to take him.

"Q-quite the bold words," the Oni stammered, their voice changing again. However, this time, it was their natural voice. "I assume you know what this means," their voice was angelic though soft-spoken. The young boy nodded. "Alright, I'll do your little request. Don't blame me when things go bad."

Mortem smiled. This one was innocent and joyful. "Thank you, Nekketsu…"


"Wait… come back," Mortem whispered in his sleep.

Mortem woke up and momently forgot that he slept in the infirmary.

The white walls of Chaldea, though the infirmary, was in this place of magic and science. Servants somehow find ways to decorate and change the appearance of a room with magecraft. Though Mortem was in the medical ward, different beds were lined up along with desks and the occasional shelf where the medicine was stored for easy access.

Time is a crucial resource a doctor can't waste since one second could decide between life and death.

It seems that I passed out after being chained up by the mad doctors of Chaldea.

Mortem looked around to see if there was anyone. He got out of bed to notice he only had underwear on, besides the bandages on his arm. He thought about asking where his clothes went. However, his stomach growled, protesting against his decision.

Alright, I'll feed you. Just woke up and demanded things of me already. At least let me find my clothes first. I don't want a repeat of last time.

Mortem vaguely recalled the time he went around naked. Nothing but complaining, Staff. As for the Servants… it was a mixed bag. Some disagreed, while others cheered him on. Then, a select few female Servants took pictures, and a few drew him in his naked form. Though he never found the culprit, he had his suspects in mind. In the end, however, it was a long lecture from more mature heroic spirits, and the staff's explanation of what he did was frowned upon.

It still baffles him today that Servants can go around practically naked, but when a Master does it, he's met with backlash.

Mortem left the room and tried to find someone or some clothes. He did, however, find someone who would be able to help him.

"Hey, Irisviel," Mortem noticed her distinct hair color and eyes.

"Oh, hello, Mortem. How was your sleep? Was it good?" The homunculus questioned in a motherly tone, oblivious to his situation.

"My sleep was great, though a little uncomfortable, mostly because of my size and restlessness. But never mind that, how was your day!" Mortem answered and quickly tried to change the subject of his sleep.

"It was okay. Going over documents is hard work. The medical department only lets me interact with patients unless they need more hands," Mortem kinda forgot what Irisviel did in the infirmary. Good thing she unintentionally reminded him.

As much as he wanted to finish this conversation. Mortem stomach growled, sending out its hungered expression. The psychic face had a tint of purple, and the homunculus giggled at the boy's expression.

"I'm sorry, Irisviel, but as you've heard, my stomach is being unpleasant right now," Mortem said, getting ready to leave the infirmary.

"Oh wait, Mortem, here's your glasses. Nightingale wanted them disinfected before she handed them off to you, but she got distracted and went off with Paracelsus." Irisviel explained while handing Mortem his glasses, which he quickly put on. "You should really take your glasses from time to time. Your eyes are beautiful and should be shown, not those dull brown ones your glasses project."

Mortem wanted to respond, but his stomach had other plans. He quickly bid the homunculus farewell, but not before he took some of the tight-fitting clothing the infirmary had lying around in one of the rooms.


"My heart wouldn't stop racing. I'm like a high schooler girl with her crush."

Though unaware of Mortem, Irisviel almost passed out from being exposed to Mortem in his practically naked form. Her face was completely red, obvious to his body, and she was captivated by his eyes.

I can definitely see why a lot of the female Servants are interested in him. He is what most women want in a man. Too bad my heart belongs to someone else; otherwise, I would have been under his thumb.

Irisviel noted that's a terrifying ability to have for the opposite sex. Though she quickly shook it off. Mortem has a good head on his shoulders and wouldn't play with a maiden's heart like that.


Mortem quickly went to the cafeteria, saying hello to the occasional Servant who passed.

When Mortem entered the cafeteria, he spotted Servants everywhere lunging about talking or drinking. A few approached him, saying a greeting or asking if he was free today. The psychic in question gave a wave and tried to dodge the ones who asked for him because his growling could be heard by anyone around him.

The Servants excused themselves as Mortem speed walked to where the cooks were. His nose was assaulted by the intoxicating smells of food the chefs made.

"Oh, hello, Master didn't expect to see you here. I thought that you would send someone over?" Emiya said from the window. "We don't have much right now, Master; we're switching from lunch to dinner. But we can get you something to eat."

Mortem couldn't speak before his stomach decided to speak for him by responding in grumbles and growls.

Emiya quickly understood the situation immediately. The Archer class Servant promptly ran to the back and came out with other Servants carrying a massive amount of food.

The tanned man carefully handed the food to Mortem. The psychic would have said thank you, but his stomach gave its own response and a burning pain throughout his body.

When Mortem found a seat, he quickly dived into his meal. How do you describe the look of pure amazement among the Servant who watched as Mortem devoured his entree? The barbaric nature still had class behind those precise movements every time he cut into the meat with his knife or bit into the bread. It was as if a black hole took the form of a tall boy who gobbled everything with hesitation.

Mortem was lost in his own world of consumption till he felt a presence and gaze as sharp as knives behind his back. That quickly made him turn around with aggravation, but that quickly changed when he saw the person.

She had a tight body suit, long flowing purple hair, and frightening red eyes that would make people tremble with dread. The Queen of the Land of Shadows Scáthach, otherwise known as Shisho by Mortem and other students around Chaldea.

"You missed training…" Mortem knew this day would come.

As much as Mortem would like to try and ease the mood of the air. He couldn't as almost in an instant, Lancer threw me over her shoulder and carried him to the training room.

"I'll ensure you'll never forget a training day with me, my student," The way Scáthach mentioned that made his skin crawl. He was giving begging eyes to the Servants around to help him, but everyone knew not to step between him and the crimson-eyed god-slayer.

At least this can't get any worse… right?


If you have any questions, give me a review.… or not, it's up to you.


Thought I would give a bio on a maybe recurring character…

Name: Nekketsu (Lily)

Height/Weight: 137cm, 47kg

Origin: Europe (present), Oni Clan in the Mountains

Region: Europe (present)

Alignment: Chaotic Neutral

Gender: Female

Parameters:

Strength: D

Endurance: B

Agility: D-

Mana: ? (Unknown)

Luck: ? (Unknown)

NP: ? (Unknown)

Skills:

Mad Enhancement E-: Even though she comes from a line of mad Oni, the Oni from Mortem's time is more composed and doesn't get easily into a frenzy. Unless, however, you take or hurt something that's theirs.

?: (Unknown)

Shapeshift(Demonic) B: These are two skills: rapidly healing wounds that prove fatal and morphing their body into anything they want.

Demonic Nature of Oni E: A fusion of skills such as Natural Demon, Monstrous Strength, Charisma, and Mana Burst. However, it's low on the rank because of how immature she is and being influenced by Mortem.

?: (Unknown)

Made her bio have some unknowns because she hasn't explained yet, and she has yet to fully appear in the story.