ThatWeirdChick

I can't remember the name of a manga i read a while ago and I want to read it again. Its about this princess who has the sight in her eye stolen by an evil necromancer as a child because necromancers live on the life force of whoever they take a body part fron, then the necromancer invades the country and kills her family and takes away her ability to walk as well. She survives because and ancient spirit posseses her body and her tells her that she has to retrieve a sword that can channel his power. She teams up with this giant guy who lives in a mountain pass that's the only safe crossing point between her country and a rival country. He's part of a soldier group I think is called the Black Knights, not too sure on the name, who are all made up of giant like him and they defend the mountain pass from both countries. The giant guy got his eye stolen by a different necromancer, so they travel together with him carrying the princess and fighting.

Please I really hope someone can help me find this manga I've been driving myself crazy!!