 If you liked
Arcana
|
 ...then you might like
Kiss Me Princess
|
Both are manhwa, they share a similar graphic style. Besides, their protagonists have androgynous bodies or are acknowledged gender benders. The two manhwa are set in fantastic realms and share a really complex plot: secrets, Machiavelian plans, politics, challanges, romance...
You sure have to pay attention to the story development!