A basic study on disturbance of the Emperor system of Japan by the admission of the Korean Imperial Family : Making of date of Okozoku (王公族).

Annexation of Korea was that two empires, The Great Japanese Empire and Greater Korea Empire, became one country as〈Japan 〉,and Emperor (天皇) reigned over〈Japan〉. Therefore, it led to disturbance of the Emperor system of Japan to keep the Korean emperor in〈Japan〉.However, Japan was not able to judge the Korean emperor recklessly. This is because Japan had to have Korea accept the treaty sealing to carry out the annexation as "an agreement". As a result, Okozoku (王公族) were founded newly in〈Japan〉, who weren't royalty, but got treatment of royalty.

Annexation of Korea was that two empires, The Great Japanese Empire and Greater Korea Empire, became one country as〈Japan 〉,and Emperor (天皇) reigned over〈Japan〉. Therefore, it led to disturbance of the Emperor system of Japan to keep the Korean emperor in〈Japan〉.However, Japan was not able to judge the Korean emperor recklessly. This is because Japan had to have Korea accept the treaty sealing to carry out the annexation as "an agreement". As a result, Okozoku (王公族) were founded newly in〈Japan〉, who weren't royalty, but got treatment of royalty.