Go Away! You Are Not the Holy Grail War I Know

I'm Yechen... I'm a bitter dog, you ask me why I'm bitter... Because I died... If that's not bitter enough... Well, I also traveled to the fate world, but the script I held in my hand didn't match this world at all... By the way, is this really the Holy Grail War... Hey, that girl over there, Twinkle, are you sure you didn't run to the wrong set? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.