Saiunkoku Monogatari (4)
Shi Ryuuki is the Emperor. And boy is he gorgeous. He starts out giving every appearance of a complete airhead, and one who may not like women, either. In fact, several of his (male) advisors have rather strong feelings for him, and those who don't despair of his ever finding a suitable mate. But His Royal Self is actually a very strong-willed, resolute leader who needed only the right prompting to show his true colors. That prompting came in the form of Shuurei, with whom he falls desperately in love. (Along with half his kingdom).