Honestly, I usually hate to read ongoing manga because all of the cliffhangers and such, but Soredemo Sekai wa Ustukushii was a must read for me. Here's why:
Story (10)
At first I thought this manga seemed kind of cheesy and suspicious, but I was wrong. You will not find a manga that's even similar to the story. It leaves you on the edge of your seat, waiting to see what happens next. New and interesting characters appear every few chapters, which makes it even more suspenseful.

Characters (9)
Nike- a caring, humble, somewhat masculine and stand-on-top-of-a-twenty-story-building kind of girl. Basically badass. Mangakas always depict princesses as a spoiled and naive, but boy Nike is neither.
Livi- He's supposed to be a kid right? Livi literally can do anything. And he will do anything for Nike, hands down. It's especially funny when he gets jealous.
Neil- He never gets any credit, but deep inside I feel like he's behind the Sun kingdom operations (maybe). He seems calm but when he cracks he gets mad. REALLY mad.

I would definitely recommend this manga to anyone who loves romance with a little fantasy and adventure. It's probably one of my favorites, and if you like it you should watch the anime too!