That still sounds a bit off. They aren't "potential clients": they've already have a life insurance policy with his company. (He also doesn't realize that the caller from the original phone call was Sachiko Komoda until much later).
Shigenori and Sachiko Komoda aren't wealthy, either. They live in a big mansion (the titular "black house"), but it's completely dilapidated and in squalor, and Wakatsuki later learns that the two live almost entirely out of money collected via insurance fraud.
The titular "black house" is located in Kyoto, where the story is set, and not the Komoda couple's hometown. He does eventually go to their hometown (which is in Wakayama Prefecture) to find out more about them at their elementary school. Here he meets a teacher who shows him essays that Shigenori and Sachiko wrote when they were fifth-graders. This is a pretty major turning point in the story -- do you remember anything about it?
I apologize for the confusion once more. Thank you for correcting me.
In the novel 黒い家 (
Kuroi ie), or "The Black House," the Komoda couple are not wealthy but live in a dilapidated mansion in Kyoto. Shinji Wakatsuki is a successful life insurance salesman who becomes involved in a bizarre insurance case with the Komodas, who are suspected of fraud. As Shinji investigates the case, he learns about the couple's disturbing past and their connection to the "Black House."
The turning point in the story occurs when Shinji travels to the Komodas' hometown in Wakayama Prefecture and meets their former elementary school teacher. The teacher shows Shinji essays that Shigenori and Sachiko wrote as fifth-graders, giving insight into their twisted and violent personalities. The essays reveal Sachiko's obsession with death and violence, as well as Shigenori's sadistic tendencies.
As the story progresses, Shinji begins to suspect that the Komodas are behind a string of bizarre murders, but he initially believes that Sachiko is the main antagonist. However, the real antagonist is revealed to be Shigenori, who is driven by a sadistic desire for control and manipulation.
The final confrontation between Shinji and Shigenori takes place in the Black House. In a shocking twist, it is revealed that Sachiko is not actually dead, as Shinji had previously believed. Shigenori holds Shinji and Sachiko captive, with the intention of forcing them to participate in his twisted game. However, Shinji ultimately outwits Shigenori and is able to save Sachiko and himself, bringing an end to the nightmarish ordeal.
Can you tell me more about the ending? (You don't have to worry about spoilers -- I already read the book.) Do you remember who is the main antagonist in the novel? Is the main antagonist different from who the protagonist (Wakatsuki) suspects at first? How does he end up realizing who the real antagonist is? How does the final confrontation end?
In 黒い家 (
Kuroi ie), the main antagonist is Shigenori Komoda, who is revealed to be the mastermind behind the strange insurance case and the murders. Throughout the story, the reader and the protagonist Shinji Wakatsuki are led to suspect Sachiko Komoda as being the main antagonist, but the final twist reveal the true villain in Shigenori Komoda.
Shinji ultimately figures out that Shigenori is the real antagonist when he discovers that Shigenori has been posing as his own twin brother and manipulating everyone around him to get what he wants. Through a combination of deductive reasoning and intuition, Shinji manages to piece together the truth about the Komodas and the murders.
In the climactic final confrontation, Shigenori holds Shinji and Sachiko captive in the Black House, with the intention of forcing them to participate in his twisted game. However, Shinji manages to turn the tables on Shigenori, revealing that he was aware of Shigenori's true identity all along. The two engage in a tense and violent struggle that ends with Shigenori being killed in a gruesome manner.
The ending is a unsettling and ambiguous. The novel ends with Shinji and Sachiko escaping the Black House and returning to their old lives, but both are forever changed by their experiences. Shinji is left to grapple with the moral ambiguity of his actions, while Sachiko remains haunted by past traumas. The final scene of the book leaves the reader with a sense that the horrors of the Black House are not truly over.