oa studio | CEO. JUNGWOO PARKBUSINESS LICENSE. 277-23-00633ONLINE BUSINESS LICENSE. 2018-INCHOENGYEYANG-0398CONTACT oa_studio@naver.comADDRESS. 16, 71ga-gil, DOBONG-RO, GANGBUK-GU, SEOUL, REPUBLIC OF KOREA ONLINE CS. MON TO FRI 10:00-18:00