Kirito and Asuna from Sword Art online.
I have a weakness, whenever a story has a girl and a boy goes on adventure and try hard to protect one another I'm pretty much bought.
Laputa/Miyazaki started it~~~!
Sword art online:
This is the first series in my memory where "I'll protect you" comes from a girl, and the guy isn't a whimp. XD
I wanted to try a different technique but due to jetlag... I can't work on a piece too long right now. (need to make more materials for cons coming up)