Romance between a prince/ princess and a subject. Both dramas have humor and romance. Love in the moonlight the girl is poor, but in My Sassy Girl the boy is from an important family. Similar feels.
They are both historical dramas. Both love stories have a Romeo x Juliet vibe, Princess man is more serious, but both dramas are beautiful in their ways
A romantic cross dresser love story about FL a Japanese girl look like a boy & ML a Korean man look like a girl sneaking in a school rock band. Based on a manga/comic book.