Flynn joined the Imperial Knights in order to help the poor, and continued to work to change the organization from within even after his friend Yuri left. He encounters Yuri many times during his quest, opposing him at times, before they finally come to accept each other's ways.
Tales of Crestoria
Flynn is a serious young man with a strong sense of responsibility. He is a friend to the weak but can be inflexible at times, like when he's struggling to navigate between people with different positions.