- ML and FL are separated
- ML does not recognize FL even though she resembles him of somebody special
- ML was ruthless to FL at some point because she resembled him of somebody special
- power struggle
- crown prince / king ML

Looks like a similar plot with FL going back in time and trying to change her future in the palace.

- ML deeply loves FL,
- great dramas,
- ML is a king,
- FL worked in the palace,
- ML has other wives

- FL was in love with somebody else before ML,
- ML loves FL only, but he has a harem,
- smart FL,
- palace struggles

- similar time setting & costumes;
- fantasy creatures;
- reincarnation is present in both dramas (secondary character in Demon Girl and main character in Twelve Legends)

- one of the leads is a creature that has wings;
- similar level of CGI;
- actors playing fantasy creatures wear eye lens

- interspecies love;
- ML protects FL;
- similar settings;
- fantasy world;
- FL is in some sense immortal

- ML falls in love at first sight;
- ML strives to become more successful because of FL;
- smart FL;
- smart ML;
- some actors playing secondary characters are in both dramas;
- comedic moments

- smart FL;
- smart ML;
- similar vibe and costumes;
- ML is a government official;
- interesting supporting characters

- the same director;
- great fantasy dramas;
- not perfect, but nice CIG;
- reincarnation;
- good-looking leads;
- nice ML;
- FL's been mistreated;
- multiple couples;
- SML (from secondary couple) is of similar type

- sweet bickering between leads;
- mischievous ML & FL;
- ML plays mahjong;
- capable leads;
- stubborn FL

- FL's job is connected to food
- ML is FL' boss
- ML makes FL cook for him
- rich ML - poor FL
- cute FL