you work for louvent household, Ars the 3 year old kid who take you in he was also loved by many people (actually got reincarnated into this world,but no one knows it), you have the same situation to Charlotte, rosell, and reitz which he taks you in when he was just three

He has this unique appraisal skill that he uses to appraise talented people and take them in, including you that's been good both sword and magic

-years past-

Ars father died which make him the lord of his nation, and at the young age he engage to war being the commander, and gained the kings favor