The "Man Who Will Definitely Quit His Job" in Japan has been consuming a simple diet of plain rice, pickles, and a boiled egg for dinner for 20 years, despite being a millionaire. His purpose is to save money and retire early. He aims to accumulate ¥100 million before turning 50.

2. Extreme saving habits: The man avoids buying unnecessary food and rarely consumes meat, eggs, or fish. He relies on free products obtained through store loyalty points and takes advantage of company giveaways.

He lives in a small, rundown apartment with minimal furniture and cheap appliances.

3. Dreams of retirement: The man dreams of exploring Japan and traveling between countries in a refurbished used car after retirement. He views his frugal lifestyle as a stepping stone towards achieving his dreams.

4. Potential health risks: Although the man's dedication to saving money is commendable, some of his habits could pose health risks.

These include not using an exhaust hood while cooking, consuming moldy food, not regularly changing chopsticks, and eating leftovers stored overnight. These habits increase the risk of inhaling harmful substances, food poisoning, and infections.

Conclusion: While financial stability is important, it is crucial to prioritize health and adopt necessary measures for a healthy lifestyle, regardless of one's financial situation.