Fate/Stay Night: Chrono Clock Work

Disclaimer:I own nothing.

Prologue

Kiritsugu PoV

Start of the 4th Holy Grail War

Illyasviel von Eisenburg and Miyu Hisau, there both my daughter and from the start, they're both very different from each other. Even their conception and reasoning, or in Miyu cause, lack of, is different.

9 years before the first Holy Grail War, Illya was born because Irisviel and I wanted a daughter to call our own. I never see Irisviel so happy. It was that moment in life she felt human, instead of an Eisenberg artificially created dolls. Illya birth was purposeful and it was the first time I felt...I can escape what I done and will do. I treated her with my utmost love and devotion even when I know I'm not worthy to be her father.

Miyu was an accident during a one-time fling I have with Maiya before I even wanted to dull my senses to my true love destined demise. It was a mistake that I'm not able to regret. Maiya was originally worried about a child slowing her down in our line of work until I came up with a solution. I call in favors and got the Edelfelt to watch over her when her mother off at work. And when I'm not able to visit. Maiya, my partner, I use her as a tool in order to harden my resolve and dull my pain. Miyu birth complicates things even further.

I know Maiya love me, but it will take me time to develop feelings for her. I plan to introduce Illyasviel to Maiya and Miyu once a peaceful world is achieved. That's if I win. If not, I predict the Eisenberg ain't going to be happy about suffering another defeat and they will either dispose of me or banish me from the Eisenberg castle. Either route, I will no longer be allowed to see Illya.

That is why I have a contingency plan in place, Miyu. If I fail, if I don't survive the end of the war. I need someone to carry my legacy and my tactics. I don't care if the next cycle 10 years from now or a 100. Even if it's in her generation or her descendants. My wish must be brought to light. Which bring me to how I treat her.

When I speak to her, I address her the same way I do her mother on missions; blunt and straightforward. When she want praise for something, she earns it. From the moment she turns 5 and till I left for the 4th Holy Grail War, I indoctrinate her into my ideas. I introduce her to the weapons I use and the tactics I employed. To a point where 9-year-old her age is playing with barbie dolls while she assembling my Walther WA2000.

Maiya commented on how their daughter becoming a child soldier. The main different is Miyu is trained till she's ready, living standard is far higher, and the instructor wasn't abusive. Normally a mother should be worried about the implication of sending her daughter down a dangerous path. She is worried, but at the same time, she understands the logic. Because in the end, if a peaceful world is achieved, Miyu job is to defend Illya, her sister. If I failed, she must win the grail or past down my legacy to my and her descendants to bring peace.

An evil method under good conscious.

All of this I plan as I depart to the Grail War. Even how they reacted is different.

I promise Illya, I will return to her. She calls me by my first name with love and affection. Illya accepted gleefully. I know she going to wait patiently for me until I return.

As I leave Miyu in the care of the Edelfelt. I told Miyu to remember what she was born to do if her parents don't return to her. She addresses me as father in a formal tone and wishes me luck. It wasn't a few hours before I get a call about her crying. More specifically, from the Edelfelt heir, Luviagelita.

Those two really do differ from each other. I'm starting to question if they can get along.

A/N:MY first Fate/Stay Night fanfic. Sorry for grammar issues, I'm trying my best. Miyu motive and personality isn't going to be hard to write. She literally got one of my OC motives and a technically not OC personality.

Miyu servant going to be a surprise. Take a guess.

Sorry for the shortness, next chapter going to be much longer. Prologue is me getting the idea out.

Fanfic requests by Worldwanderer 2.0.