Not your typical high school shoujo love story. In a more olden era setting like Romeo and Juliet except for the fact that the main couple are of different countries and part of the ruling families. 

ZHD is about this couple pretending to be lovers so that their respective countries would not start a war with each other. This is NOT planned by anyone and only the both of them know about this 'little' secret of theirs. 

Sound good ne? Link: Zettai Heiwa Daisakusen 

This manga has comedy (made me ROFL loads of time), a little romance here and there (hint hint) and some action, fighting...in later chapters...I think. Great plot, the only glitch is that it's not updated frequently. *sighs*

We manga readers must be patient~ *tears* I know, the wait is killing me too...