Very different in tone, but both are historical Korean dramas with MLs whose job involves marriage and who have left or been forced to leave their noble class background.

Master/student relationship. Similar bittersweet, melancholy feel and tone.
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Nods to the fairytale, poor FL ends up living with rich guy(s) and falls in love with him/one of them. Similar tone and feel.

ML is a bully who undergoes character growth and change after meeting FL who he initially plays games with and bullies, but then slowly falls in love with her. ML is a student in both, but the FL is older in Promise Cinderella. Similar style of humor in the lighter scenes.

ML is a bully who undergoes character growth and change after meeting FL who he initially plays games with and bullies, but then slowly falls in love with her. ML is a student in both, but the FL is older in Promise Cinderella.

Different in tone but similar in characters and aesthetics. ML is a god like being, FL a human, and their relationship grows slowly. Also in the end, ML disappears, then returns as a human.

While very different in tone, there are similarities in characters. The SML is a gentle scholar and the ML initially appears as a villain, distrusted by the FL. Events occur that the FL is not expecting which cause her to fall for the ML and experience hardship.

Both are bubbly, fast paced, and fun Japanese BLs with endearing characters and upbeat, often hilarious moments. Both have a very similar tone an school setting.

Same actor as the ML. In both he is extremely devoted to the FL and will do anything for her. Similar tone and setting. Both are very interesting dramas that don't lose their pacing in the second half.

ML starts out gentle and kind, then his family is stolen from him, he is presumed dead, and his personality shifts into revenge and hatred for those responsible. He returns and reunites with FL who helps him heal/reunite with what's left of his family. The tones are similar and both have happy endings despite being darker stories.

The main characters have suffered trauma and are emotionally and physically damaged. ML doesn't value his own life much and comes across as a tough character at first but later has the softest heart toward the FL. Hopeful ending, despite all the suffering. Also similar tones and city night scenes.

The main characters have deep emotional wounds and trauma and start to heal with each other's help. There's also a scene where ML clings to/hugs FL that reminds me so much of a similar scene in the other drama. Both feature happy endings after much suffering and heartbreak.