There's too many plotholes in this manga. At first the land of lamberk was introduced to be at the further southeast of canalle and now it's in the middle?
Also at first charlotte was 11 years old three years passed she's already 14 and three years passed she is 15?? Does that makes sense? The same goes for ritsu, at first he was 14 then 17 and now 18? Doesn't make sense for them to only age 1 year after 3 year time skip. Welp for the MC his age is right 3,6,9, 11