Readable portion
The reading section was used as a title to differentiate the monarch of Bohai. According to "Guo Daejosa Old Goryeo History", the monarch of Bohai was referred to as the "Gadokubu", and it was called the castle in front of the castle. This record is considered to be the Chinese character of Balhae, which refers to the military headquarters. Almost the same contents are listed in "New Orders", "Bookshelf ears", "Oh ryokoro yo", "Documentary Notices".