With My Price Deduction System, I Became Invincible

With My Price Deduction System, I Became Invincible summary:

The protagonist, Yuuto Matsushima, is an ordinary young man working multiple jobs to save money for his future spouse. One day, by a twist of fate, he accidentally activates a mysterious “system.” This system announces two things: first, that it has reduced the prices of goods worldwide to 1/1,000,000 of their original value, and second, that Yuuto’s personal funds remain unaffected by this change.
In a world where prices have plummeted to a fraction of their original cost, Yuuto suddenly finds himself unimaginably wealthy. As he uses his newfound fortune to help those around him, the system begins to issue specific missions for him to complete. While adapting to his new status and lifestyle, Yuuto gradually starts to think about the long-term impact of his wealth and resources, pondering how best to use them to shape the future.