My Fate's grand order My FGO

Summary: A man from our world was transported in another world. through a series of unfortunate event, it made him wiser and knowledgeable compared to his earlier life.

he also has a few loose screws in the head.

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I'm pretty sure that I wouldn't write this if I'm not confident of my abilities. so no generic omega op power up nor bullshit plot armor schtick.

no harem either as I can't see him forming a stable relationship due to his upbringing.

I'm also knowledgeable and a veteran writer so don't worry about the quality. cuz I'm not gonna write a shitty book.

btw, I rewrite the original so I could publish this.

Ps: This would be my last book, so I hope I could inspire a few newbie authors if I somehow drop this due to my... rather unpleasant life.

warning: English is not my primary language and this would be an original yet fanfiction at the same time.