Yoshikage Kira understood that true peace required financial security. His position at the Kame Yu department store, while sufficient for maintaining appearances, would not provide the lifestyle he envisioned for his new family. With the same meticulous planning he had applied to eliminating threats, he devised a strategy to build wealth without drawing attention.

His first move involved careful manipulation of precious metals. Using Killer Queen's precise explosive capabilities, he developed a method to fracture gold bars into perfectly sized components without leaving trace evidence. Each weekend, he would visit different precious metal dealers across the prefecture, purchasing small quantities of gold that would raise no suspicions. In his basement workshop, he would carefully separate each bar into smaller pieces, then sell them to different dealers at premium prices for their unusual purity.

The process was elegantly simple. Killer Queen's explosions, controlled at a molecular level, could split gold along crystalline boundaries that natural processes could not achieve. These uniquely pure fragments commanded premium prices from jewelers and industrial users, creating a steady stream of profit that appeared completely legitimate.

But Kira's true financial masterstroke came through his understanding of the antiquities market. He discovered that certain collectors would pay extraordinary sums for artifacts with proven historical significance. Using his Stand's abilities, he could age materials in ways that were indistinguishable from natural processes. He carefully selected items that aligned with documented historical pieces, creating "discovered" companions to known artifacts.

Each piece was introduced to the market with painstakingly crafted documentation. Kira's attention to detail, honed through years of covering his crimes, proved invaluable in creating convincing provenances. He worked through different auction houses, never establishing patterns that might draw attention.

Within six months, his carefully managed investments had grown substantially. He opened offshore accounts under carefully constructed identities, moving money through legitimate channels that would withstand any scrutiny. The Kawajiri family's increasing prosperity appeared to be the natural result of sound financial planning and modest inheritance.

When the time came to purchase a new home, Kira selected a property that balanced luxury with discretion. The house, situated in an upscale but not ostentatious neighborhood of Morioh, featured a traditional Japanese garden that reminded Shinobu of her childhood home. For Hayato, there was a modern study space with every technological advantage a student could desire.

The new car, a luxury sedan in a subtle shade of gray, was chosen for its safety features as much as its comfort. Kira represented it to neighbors as a practical choice for a family man concerned with protection rather than display. Each purchase was carefully timed and justified, creating a narrative of gradual success rather than sudden wealth.

He established a private office in the new home, ostensibly for work but actually serving as his command center for financial operations. The room was equipped with state-of-the-art security systems, protecting both his activities and his family. Here, he could monitor his investments and plan future operations while maintaining the appearance of a dedicated businessman working late.

Shinobu bloomed in their new surroundings, taking pride in maintaining their showcase home and hosting small dinner parties for neighbors. Hayato's academic performance improved further with his new study space, and his previous suspicions seemed to fade entirely in the comfort of their enhanced lifestyle.

Kira found unexpected satisfaction in watching his family enjoy the fruits of his elaborate schemes. Each smile from Shinobu, each proud moment with Hayato, reinforced that his methods, though unorthodox, served a greater purpose than mere accumulation of wealth. He had created not just security, but happiness.

As winter turned to spring in Morioh, the Kawajiri family had become a model of upper-middle-class success. Their neighbors saw only a hardworking businessman who had made sound investments, a devoted husband who had provided well for his family, and a father who had created opportunities for his son's future.

In quiet moments, surveying his domain from the garden he had created, Kira reflected that his Stand's destructive powers had ultimately built something meaningful. The peaceful life he had always desired was now fortified by financial security, protected by careful planning, and enriched by the genuine contentment of his family. In becoming Kosaku Kawajiri, he had not just found an escape—he had found purpose.