Is Kui Cheng Shoufu Cong Youxi Kaishi hentai?
English title: The Richest Man in Game
No
Rated PG-13 (Teens 13 or older) on MyAnimeList and not tagged as Hentai.

ONA · 2024 · 16 episodes · PG-13 - Teens 13 or older
Comedy, Fantasy
Pei Qian, an ordinary migrant worker, was accidentally bound to the wealth conversion system, which gave him a good opportunity to spend money in business and start his life over again. However, the system stipulates that you can only earn one yuan if you make a profit of 100 yuan, but all the money you lose can go into your own pocket. In order to lose money, Pei Qian chose the high-risk, money-burning game industry, and deliberately produced "alternative" games that went against the rules of the market. However, he unexpectedly became popular time and time again, earning a lot of money, and painfully became Pei Qian the "business wizard" admired by everyone, but only Pei Qian understands that he really just wants to lose money... (Source: Bilibili, translated)
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