Nagi is the only child of a famous writer. Not only was her father famous, but Kirima Seiichi was fairly prolific, averaging one book a month and usually at least ten books a year. This man originally started writing novels; however, he is better known for all of his work
except those. Even his biggest fans reported never touching his novels. His writing also seemed powerful enough that Seiichi called himself an "enemy of society" - not because he deliberately sought to unhinge things on a greater scale in the world, mind you. No. It was merely that he noticed a lot of his fans seemed to be people who might be further along the evolutionary path, and they kept dying or going missing. Sooner or later "they" would come for him, a dangerous "modern day enlightenment thinker." And they did.
When he wasn't writing novels, the base of his works was comprised of dissertative essays, summaries, commentaries, and books on topics such as criminal psychology/depth psychology, history, and classic literature. Eventually he stopped writing novels and concentrated on what sold. His fans never seemed to notice the difference. The base of his works were written during the 1980s and maybe early 1990s in Boogiepop-verse, where he probably was assassinated in... 1990 or 1991. (I cannot be sure, and am judging this off of Nagi being 17 or 18 when the first light novel came out, whereas her father died when she was ten. The timeline is a little unclear so this is the best I can do.)
As for the writing style, ambiguity was a distinct characteristic. Nagi herself has always wondered why his books sold so well. The translation notes for the first light novel state the following: "Seiichi's quotes are always a bit of a nightmare to translate, as they have to strike a balance between seeming cryptic but being vaguely understandable. Our translation is the result of studying the Japanese closely and puzzling out the meaning of the passages before ever translating a word" (p. 233). In
Boogiepop at Dawn, Dr. Kisugi's opinion of the man's works seems to be that the writing itself was fairly slapdash as far as works in the psychological field go, but that he had a terrible habit of hitting the nail on the head due to pure instinct. In
Boogiepop Returns: VS Imaginator Part Two, Asukai Jin notes Seiichi's twisted grammar and cannot decide if the writer is optimistic or resigned.
Below is a listing of all the Kirima Seiichi book titles and quotes I've been able to locate in the light novels and the anime. Since most of the light novels have not been translated into English even by fans, it's obviously not exhaustive.
- The Victor's Principle: The Victim's Future
- The Scream Inside—Multiple Personality Disorder
- When a Man Kills a Man
- Where the Killer's Mind Changes
- A Nightmare of Boredom
- The Proliferation of 'Dunno'
- VS Imaginator
- Isolation and Faith
( Quotes from his books plus his dying words to Nagi )I think somewhere else in the anime, another episode has a couple more quotes. But I can't find the post-it note I'd written them down on, and I just don't have the time to rewatch the entire series anytime soon. They'll be added in when relocated, I suppose.
The main purpose of this post was to give players blanket permission for their characters to have heard of Kirima Seiichi and even have read his books. Either the characters' worlds overlap with the Boogiepop-verse, or they saw/read the copies of his works that mysteriously happen to be in the camp library. Woo.