Talking about contradictions or unjustified claims.

If this was supposed to introduce Francis then this felt forced

Why?

I do not understand what kind of world this

This is not a sentence.

If the story is going for a realistic one then a knight or any skilled fighter would not take unnecessary risks

Fucking duh. It's not realistic.

If it is going for a fantasy then i do not see nothing to suggest it

Double negative. Also you just mentioned the risk bit, not to mention the improbable physics.

Francis is a greedy chivalrous knight not interesting as a character

How is he chivalrous if he's greedy? These are mutually exclusive characteristics.