If I could change one thing in this it would the age of the MC. Having a 3 year old run around in the city just dont feels weird... Maybe if he was 10~12, even 8. Considering he is the son of the local lord is even stranger... Does the staff not care if the kid goes missing for the day? hahaha
But its one of those manga where you just read it and dont use your brain too much.
Still, waiting for more