Akagami no Shirayukihime manga
At last I realized what this manga gives me flashes from: Kaicho wa Maid-sama! Both the art, and the main characters, even the part that the girl has actual authority, knowledge. Only this time I'm not annoyed by the main guy. Next to Usui Zen is really... well, prince-like. Usui might be a better fighter, but my poor soul is comforted more with the way Zen handles big, country-shaking issues. His character design is not my favourite, so he'll not kick out my top 3 manga guys, but I would def. catch him at Pocket Bishounen, if he would be there as an option. ^^