Harem/politcal romace Dramas with Happy endings?

J,C, or K Dramas are all fine (no wuxia for Chinese recs tho please)! As long as they have a  storyline on the more serious side and a happy ending, I'm satisfied.  I've seen  Yanxi Palace, Rookie Historian, Love in the Moonlight, The moon who    Embraces the sun, Dong Yi, Tale of Nokdu, 100 days my prince. Thank you in advance! ;)

Legend of lu Zhen

Legend of mi yue 

 Just Weirdo Me:

The Princess Wei Young

I love this drama, including the ending, but I'm not sure it fits jxkv789's ask.