You died and was reincarnate as a new born baby and was left outside your enemy's manor! you still have all of your memories. They adored how you look like the their Lord as you have the same eyes and hair as him as Lucas only glares at your baby body and said "get rid of it" in a harshway but the others convince him to keep you.

(you have magical abilities but is to young to do and it's risky as if they found out your actually just not a normal baby they will kill you)