Nifeng Zhi Hua
Dong Chu, the princess of a small southern country, travels thousands of miles alone to a foreign land with a single goal in mind: breaking off her engagement with her fiancĂ©, the Great Lord of the Northern Territory! His name is Lin Zhenying, and heâs horrendously cruel and arrogant. After she arrives, however, her fiancĂ© is overthrown and cursed to remain in the form of a small child. Taking pity on his now considerably weaker state, Dong Chu pledges to help him reclaim his throne and to gain power once more.
(Source: Comikey)
Note: Chapter count includes two season prologues and three extras chapters.