Both dramas are set at the time of the Nine Lords' War.
Both dramas show the princes' endless scheming against each other to secure their position/reputation as a worthy crown prince/emperor to their father.
The female leads in both dramas eventually gets involved with politics and the princes - though with which prince differed between the two.
Both showcased aspects of arranged marriages, as well as marriage alliance.

Both dramas are set at the time of the Nine Lords' War.
Both dramas show the princes' endless scheming against each other to secure their position/reputation as a worthy crown prince/emperor to their father.
The female leads in both dramas eventually gets involved with politics and the princes - though with which prince differed between the two.
Both showcased aspects of arranged marriages, as well as marriage alliance.

Both dramas are set at the time of the Nine Lords' War.
Both dramas show the princes' endless scheming against each other to secure their position/reputation as a worthy crown prince/emperor to their father.
The female leads in both dramas eventually gets involved with politics and the princes - though with which prince differed between the two.
Both showcased aspects of arranged marriages, as well as marriage alliance.