Here just give information about your knight, and you can include a story.
Height: Extra Short
Personal Color: Yellow
Name: Ink-Incorporated
Eyes: Closed
Story: Ink was training to be able to defeat gremlins as a weak, young knight. He was feeling confident that he could be a hero so he went on an adventure. He ended up bashing through a lot of gremlins and baddies, but he took on the battlepod himself causing a fatal injury. When he recovered, he was okay, but he lost his sense of sight. He then, wanted to just alone for a while, and he became less social and excited about his life. He went on an adventure because he still felt like his dreams shouldn't end because of his lack of sight then he discovered that he can perfectly use his other senses to detect others. He's an assassin though, and he might just try to assassinate your knight right now... >:)
The story doesn't have to completely apply to Spiral Knights lore. They just have to give a story on what your character is like.
Ahh, one of my favorite things to do when coming up with a character. Dabbling with the backstory, spending hours typing it out, and hardly ever referring back to it.
I can't be bothered to write something up right now, but I'm looking forward to reading what others have. I may just post some meaningless drabble later on.