왕명학은 중국 연안에 왜구가 창궐하였을 때 통주 낭산에 주둔하여 왜구를 방비하는 임무를 맡았다.
Wang Myeong-hak was stationed in Nangsan, Tongju, and ended up being tasked with defending the Japanese when there is an outbreak of Japanese invasions along the coastline of China.