Korean shoes are generally small except the casual version. Normally, you should wear size 37 China standard shoes. If you wear Korean shoes, you can choose size 36.

Comparison of Reference Dimensions between China and South Korea

35 - 230

36 - 235

37 - 240

38 - 245

39 - 250

40 - 255

4 1 - 260

42 - 265