Dominating with the Price Collapse System is a Manga/Manhwa/Manhua in english language, Action series, english chapters have been translated and you can read them here. You are reading chapters on kissmanga.in fastest updating comic site. The Summary is
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
5/5 for this is a bit…
Edit: No matter how you look at it, it’s a manhua, so why are all the names in jp?