Japan's Summer Jumbo Premium lottery is offering a combined first-place prize of 1.2 billion yen [1].

The lottery highlights the psychological and financial challenges of sudden wealth by providing formal guidance to high-value winners. This approach aims to prevent the financial instability that often follows massive windfalls.

Ticket sales for the lottery begin on the 30th of this month [2]. To assist those who win significant sums, the lottery distributes a booklet titled “その日から読む本” to any winner who receives 10 million yen or more [2]. The publication is designed to offer a realistic mindset and practical advice on how to handle the transition into sudden wealth.

A public poll conducted by MSN revealed a wide range of aspirations among Japanese citizens regarding how they would spend such a prize. A 19-year-old respondent said they would like to live in a luxury tower mansion and spend their life in leisure. Another respondent, aged 30, said they wanted to show gratitude and kindness to their parents.

Financial caution remains a priority for some younger participants. A 20-year-old respondent said they would want to keep about 70 percent of the winnings for their retirement because they feel anxious about the future.

While the combined first-place prize is listed at 1.2 billion yen [1], the lottery's focus on the "mindset" of winners suggests a systemic effort to protect citizens from the pitfalls of rapid wealth accumulation [2].

I want to live in a tower mansion. I want to spend my whole life playing.

The provision of a guidance booklet for winners of 10 million yen or more reflects a cultural emphasis on stability and risk aversion in Japan. By institutionalizing financial advice for lottery winners, the state acknowledges the potential for 'lottery curse'—where sudden wealth leads to bankruptcy or social isolation—and attempts to mitigate these risks through structured psychological and financial preparation.