I'm really not a top magician

[Note: The first two volumes are original stories. If you want to watch the Holy Grail War directly, you can jump directly to the third volume]The Root Princess Aika Sajo inexplicably traveled to the Type-Moon world, but it seems that there is something wrong with this world line.Then she...I became the first genius of the Clock Tower without knowing why.Unwittingly became the youngest Grand Master Magician in history.I won the Holy Grail War by accident.Saved humanity in a confused way.……However, Aika Sajo knew very well that although she was a time traveler, she did not obtain a system and did not have any golden fingers.The only thing she had was luck."Let me be frank. I'm really not a Grand Master Magician. I'm a wimp. Why don't you believe me?"Standing in front of the fallen Goetia, Aika Sajo said helplessly to everyone.