@___shadow___ Yes. However, I recall hearing of cases where person made a mistake and exposed their dual and were punished by Japan.
The point being study/understand the situation and workarounds so she doesn’t accidentally make a mistake and cause herself civil damage.
@gingermarie As others have mentioned, plenty of salary, especially for your age. You should be aware that Japan does not recognise dual citizenship, so study up on how to manage that without getting yourself into trouble.