Help Me Find This Manga Please!!!!!!!!!!@

Okay this manga is a yaoi genre, and the story goes like this:


There was this young man who was really interested in a legend about rivers and trees in a middle of a desert. And the desert one night disappeared and no one knows where it went. So the boy grew up he went to a group of people who are searching about this city that disappeared in one night. And the research group did something they're not supposed to do(It seems like the place they were researching on was owned by a group of people feared by the people)
And they were suddenly on the run(boy happens to be a "cursed" child, whose a prince who is always with this handsome man/bestfriend/parent(Idk and they were captured and as the story went, the young man and the person who capture him started falling in love. And The young man was returned to his palaced but was capture again by his lover(willingly this time) and the manservant, best friend followed him.
And the story show of hw they lived afterward.(Of course the young man found all there is about the lost city and here it is and all the other questions he wanted to answer)
So there! And please tell me you know of this manga, I can't find it. But If u do found it please give me the link/ title or author. Thanks