Not to me. She is more suitable for matured roles like here as the queen mother, but for a quirky savage character like the FL here IU is more suitable or more like one of the best choices.
If there was some past between Grand Prince and Queen, like love angle or something else then both should be in…
Honestly I do not want a mutual past love angle for them. If it’s a one side crush from the queen then it’s fine, and from what seen till now I think it’s like that.