A 20 year relationship exists between King Sejong and Jang Yeong-Sil. They invent various devices for astronomical observation. Due to a case, Jang Yeong-Sil is discharged from office and he disappears completely.
A 20 year relationship exists between King Sejong and Jang Yeong-Sil. They invent various devices for astronomical observation. Due to a case, Jang Yeong-Sil is discharged from office and he disappears completely.
