https://blog.faceutil.com/2020/05/08/%eb%8d%b0%eb%93%9c-%ec%8a%a4%ed%8e%98%ec%9d%b4%ec%8a%a4-2-dead-space-2-%ec%8a%a4%ed%8c%80%ed%8c%90-%ed%95%9c%ea%b8%80-%ed%8c%a8%ec%b9%98-ea-%ec%a7%80%ec%9b%90-%ce%be/