At One point he is holding off a mercenary band while the MC fights the "boss" to protect the princess. After the a while he convinces the Knight Squad to get their wounded and retreat only to fire bomb and kill all of them as they retreat to prevent any information from leaking out about the events that they couldn't control."
The Princess he saves is no Damsel in distress. She immediately schemes of how to emotionally manipulate the MC even after being saved. And she immediately sees that the MC's group has a wider objective in mind and works to figure it out to her advantage