I want to say

Before writing this book, I was completely clueless, unsure of what kind of story to conceive. In order to draw inspiration, I watched numerous science fiction movies.

Ultimately, it was only after I watched and that I began to conceive this story.

The idea that "people from the future cannot kill people from the past, and people from the past cannot kill people from the future" was sparked in me after watching, and it was also used to satirize the character Kraut.

I originally intended to portray Kraut as a ruthless and cold-hearted antagonist, but unexpectedly, he turned out to be too likable. Despite this, I did not intend to whitewash him, as he remained a selfish individual.

By the way, Alicia's death was a plot point I had already conceived when writing the first book.