how do i tell my parents this is what i want to do?

for some context, I come from a very strict family that isn’t very fond of Asia. My mom told me not to long ago I’m wasting away my youth by not working in a field I studied for but, I have no desire at the moment to do that. This will be a difficult conversation but I’ve wanted to teach abroad for some time-does anyone have any ideas of how to bring this up?
I was offered a job at a school in Hong Kong (I know, this is for teaching in Japan) and I’m applying to schools in Japan, so it’s not just a dream

by ghost_of_ophelia