Yongi Bireul Naerineun Nara

According to legend, a nation in which a dragon appears is destined for prosperity. Finally a new dragon is born in the desert-covered empire Rahan, but...as a fragile young boy! Until the boy comes of age, the crown prince orders him hidden away in the depths of the palace. But one night, Suu, a lowly palace servant hoping to run away with his dear Nadan, stumbles upon an unexpected mystery... And so begins their tale of love, obsession... and desire.

(Source: Tappytoon)