A very similar plot line that follows the romance of two characters who work/study the same industry and fall in love. In both dramas, the characters meet in the game they are playing together before meeting in real life as well!! Both shows have an extremely smart male lead and competent female lead as well

They are both about twin brothers that take each other's places. In Your Honor, Suho works as a judge and Kangho's been to jail 5 times. In Sirius, Shinwoo works as a Chief Detective and Eunchang just got out of jail. They have very similar plots.

Both dramas are action dramas about the police. The difference between the two is that in Athena: Goddess of War, it's talking about secret agents while Poseidon is about the police.