Hi,

I am looking for a specific manga (I think it was manhua) involving an arranged marriage. From what I remember, a family disguises the youngest boy into a girl to marry off to a prince, who was not interested in love anyway, only in war. There are a lot of mishaps in trying to conceal his true identity, but the prince already knew of course. It might have been a problem because he needed an heir? It was rather sweet, and I think the art resembled Lee Young-hee's. If it sounds familiar, could you please tell me the name? Thanks!

Found it, it's Kiss me Princess in case you were wondering.