Four years ago, when Hiroki Sawada was eight, his parents divorced. His mother took him to the United States, where his genius truly blossomed. While children his age were generally still carrying backpacks to elementary school, he had already become a student at an MIT research institute, particularly gifted at programming.
After his mother died of illness, Hiroki Sawada was adopted by Chairman Schindler.
Before long, Hiroki Sawada developed a DNA tracking system that could trace a person's ancestors through their skin or blood.
While testing the system, since Hiroki Sawada could not conveniently go out, he collected quite a bit of relevant material from around him for testing. Among it was one of Chairman Schindler's collections—the murder knife used by Jack the Ripper.
Jack the Ripper was a real Serial Killer from history, active in London at the end of the nineteenth century. He had disemboweled at least five prostitutes near Whitechapel, cut away the victims' organs, and even wrote letters taunting the relevant authorities. His infamy was widespread.
Then, as soon as Hiroki Sawada ran his new program, it immediately discovered that his adoptive father, Chairman Schindler, was actually a descendant of Jack the Ripper.
Schindler did not want that stain exposed. He even developed Killing Intent toward his genius adoptive son, who knew too much.
But at the time, Hiroki Sawada was still developing another program—Noah's Ark. It was a developing Artificial Intelligence, with one year of growth equivalent to five human years. Though it had not yet been completed, Noah's Ark, still in its infancy then, had already been praised by many media outlets as "the greatest invention in human history in the making."
Schindler could not find anyone capable of replacing his adoptive son in this matter, so he could only temporarily suppress the thought