His soccer career cannot be explained without his father. His father was always with Ki. He said he found Ki's talent in elementary school and wanted to continue soccer career. Therefore, his father started to train Ki and he can now use both feet. His father also wanted to develop more to study about soccer. Therefore, Ki moved to Australia at twelve years old to study English and started to playing soccer. Because of this experience in Australia, he could speak in English fluently and it is easy to communicate with other soccer players.