Chapter 0 part 1
( A/N: this story before he transmigrated in DXD)
MC POV
My name is Ingram von Einzbern, I am the twin brother of Illyasviel von Einzbern. Unlike the other homunculi the process of our birth was similar to the ordinary humans, you could say that we are a hybrid of Homunculus and Artificial Human, our mother named Irisviel von Einzbern was a modified homuncolus which allows her to conceived a child and our father named Kiritsugu Emiya a hired Magus and a sperm donor which is result of us.
Before the Fourth Holy Grail War, it's our happiest moments in our lives unlike the other Magus Families which magecraft was their first priority over family bonding. Illya and I learned the emotions that the human shows, unlike Illya I am physically weak and fragile and my physic was comparable to an ordinary children, it maybe due to my genetics in Einzbern side because almost all of the Homunculus in Einzbern was a female as they same DNA of Justeaze Lizrich von Einzbern one of the founder of Holy Grail War and also the head of Einzbern Household in the past.
Because of that before mother and father leave towards Japan where the Fourth Holy Grail War begins, my father lodge the hollowed scabbard called Avalon inside me through operation secretly without the permission from Jubstacheit von Einzbern, the current head of Einzbern Household the one who created mother. The Avalon grant me a regenerative abilities and limited immortality, with this it allows me to protect Illya.
" Please protect your sister in our place, I knew that you are mature than Illya, we will meet again Ilgen." Father kindly said before he leave with mother.
- Timeskip - a few months later-
A few months later after the Fourth Holy Grail War, mother and father never come back in our home, as Jubstacheit lock us inside the castle and never let us go outside as he says that is dangerous outside, at that time I don't know either my parents was failed in Fourth Holy Grail War or not, it was either dead or abandoned us which filled me a great disappointment and grief while my twin sister was still hoping for mother and father to come back. And later on, the family head of Einzbern Household announced to meet us in the living room.
" I would to announced to both of you that your mother, Irisviel von Einzbern officially dead during the Fourth Holy Grail War, as for your father Kiritsugu Emiya currently missing in action." he said to us which gave us a great shock especially to Illya who was starting to cry beside me.
I have still slight doubts to his news, but if it's true I don't want to be a weak so long and I want to protect Illya at all cost, which is why I will resolved this now as I look towards Jubstacheit with determined look.
" I would like to open my magic circuits and learn the magecraft." I says to him, which is slightly surprised him as he nodded slowly.
" Good, come at the study room at evening." he says as he dismissed us.
- Inside the Study Room -
Unlike Illya whose magic circuit at eight months old who will be perfect vessel for the Holy Grail, while I due to my weak body of mine at that was postponed to open my magic circuit as I am a rare male homunculus with a DNA of the first head of Einzbern Household plus being an half artificial human my lifespan was much longer than the Homunculus, my value was high despite not being a vessel of Holy Grail. Jubstacheit was inside the study room as he preparing some ritual which can make me open all of my magic circuits and get better quality, after he noticed my presence he look at me and beckoned me to moved towards the magic circle where the ritual resides.
" The process of opening the magic circle was painful and be better endure it and you can get better results." he said as he continued" take off your shirt I will transmit my mana through your back." I obey as I take off my shirt and sat down in the middle of magic circle, after he saw that I sat down he moved toward behind me put his hand in my back.
" Arrrgggg!!!!!" I feel the heat transmitted through my back that it almost unbearable to resist.
- A few minutes later -
" Hmm not bad the quantity and quality was better than I expected" he said as put a distance from me.
" How many magic circuits that I have?" I ask
" You had 96 magic circuits and each quality was comparable to first class magus." he said as he walks towards the shelves and took a three books as he put it on the top of the table.
" This book contains Magecraft Theory, Projection Magecraft and basic Alchemy Theory, report it to me if you complete your task." he says as he left the study room, while me stood up moved towards the table where the three books lay on it, I took it and left the study room and went to our room.
I saw Illya was still crying as I towards the bed and hugged her which calmed her down.
" Don't worry I'm sure that father was trying his best to come back here, be strong I'm still here I will not leave you alone." I said to her as she slowly looked up to my face with tears stain on her face. I feel something wrong in my core(heart) as I feel urge to kiss her lips and I don't know why.
" Hmm.. please don't leave me brother." Illya said as she put her head in my neck as I feel her arms in my back, I hugged her tightly as we both fell asleep.
- Timeskip - Four years later -
Four years has been passed since the news of our mother's death, I endlessly train myself as I abused the regenation abilities of Avalon to the point I lose my consciousness. To make sure that I will not let Illya feels lonely, I started to learned the Thought Partition for sure it's hard to study it at first but due to my dedication on it I managed the divide my thoughts into four.
First thought- Physical Training - unlike those fragile Magus I started to train my physical fitness to the limits.
Second Thought- Bonding with Illya - as I don't want her to isolate herself as she was having negative thoughts against father as our inner world was connected to all of Homunculus in Einzbern castle, the news about our father was found in Fuyuki city with a child, a year younger than us with a auburn colored hair and brown eyes. It looks like he was happy now that he didn't bother to come back here for us, but I'm still a Homunculus and recordings will not transmitted to us without the Jubstacheit's permission.
" I see, that's what your planned huh old stone" I muttered as I connect the dots of Jubstacheit's plot. ( A/N: the Old Stone was referring about Jubstacheit is a golem built by Justeaze that's all I know via Fandom)
Third Thought- Magecraft Training- my Projection Magecraft was a first magecraft that I learned went to the pinnacle level as I can make an object at almost 100% copy even the content of such object was also copied that is hard to differentiate to the original object and it will last longer. My second magecraft was Transmutation which is an Alchemy category magecraft allows me to Transmute the ordinary stone into a jewel that perfect medium for Jewelry Magecraft and ordinary silver ore into a Holy Silver which is perfect material to create Black keys and other Dead Apostles Slaying weapons.
Fourth Thought- Bonding with Illya again - we found a hobby that hook us, which is mana transferring via bodily fluids as we cross the line that the human called Taboo, when Illya started to study the Einzbern Magecraft as a vessel of Holy Grail. There times that she overexerted herself, though her wish revenge against father was lessen due to me as she don't want to disappoint me, even though her magic circuits quantity was bit higher than mine but the recovery rate of her mana was much slower than mine as I possess the Avalon. When I was trying to search how to speed up Illya's mana recovery rate, I found an old book littered around the shelf, the method about mana transferring that written inside the old book.
- Timeskip - A days later - In the Study Room -
I was sitting in the study room while in front of me was Jubstacheit was also sat down across me with serious expression(he was always been serious expression anyway). A silence has been wrapped around the study, Jubstacheit was the first one to break the silence.
" Ingram, I would like to give you a task to take the two relic that you and Illyasviel can use as an catalist to summon the servant in the upcoming Fifth Holy Grail War in the few years prior when the time was ready." he said as he stood up went towards the vault and took out a staff that looks like a walking stick and hand it over to me.
" This staff was a Mystic Code that allowed you to cast a Magecraft without chanting the aria of the Magecraft." he says as he stood up and left the study room.
- To Be Continued-
( A/N: Well I know it's a messy as I'm not much knowledgeable as I only read the Nasuverse Fanfic and playing a bit of FGO, I took a whole day researching in Fandom and lazing around to make this chapter)