Amsaldanghan Hwangtaejaro Saranamgi

Fiona is an ill-fated princess who, though a woman, has lived her entire life as the Crown Prince “Pion.” After her younger brother Hubert is born as the new heir, she falls out of favor with the Emperor and lives within the imperial palace constantly facing the threat of assassination. With the help of Wayne, a genius alchemist and the second son of a duke’s family, who is both her childhood friend and a court official, she fakes her own death and goes into exile far away, where they live a secluded life together. One day, Fiona catches Wayne comforting himself while calling out her name…

“Wayne must think I’m a man, could it be… that he likes men?”

(Source: Ridibooks, translated)