Korean society has achieved industrialization and democracy in the short term without precedent in world history. Moreover, Korea has stepped into the international society and is acknowledged as an advanced nation. Really, in those days, Korea’s undeveloped nation experience was, in a sense, compensated. However, Korean society’s present reality is unfair and deepens poverty. What is the reason? More than any other thing, the real estate problem is core. Of course, various problems relating to Korean society, such as unfairness from low birth rate, education, unemployment, Covid19, etc., exist. So this paper, to solve the real estate problem, which is a Korean society’s unfairness and poverty problem, offers a small cure method with Christian ethics. For this purpose, this paper examines Henry George’s central thesis, the land valuation tax system. And through his land valuation tax system, the writer suggests an idea of possible structural change in Christian ethics.