Queen Woo is set during the Goguryeo Dynasty era, Jumong is also a drama about Goguryeo dynasty. Precisely, Jumong is about the founding of Goguryeo Dynasty. Both drama is set during the era of Goguryeo Dynasty.

Cold Female Lead. Judging from the synopsis, the FL is a cold character, and I think she's very similar to Oh Soo Jae. If there's one thing that link "The Judge From Hell" and Why Her?", it's the cold character of the FL.

"Meet Again". Here We Meet Again and Love Next Door is similar because in both dramas FL and ML met again after years of separation. In Here We Meet Again, Xu Yan Shi and Xiang Yuan used to be high school friends back in the days, they eventually got separated and met again after years. I think it's similar to Love Next Door's. After all, two friends did meet again in both dramas after becoming full fledge adults.