I bought a DePes airbrush compressor!
It's much easier to use than the Easy Painter, and what's even more surprising is that the paint doesn't get used up at all.
It also paints incredibly beautifully!
I wonder if more expensive sets would be even more impressive if they were aimed at beginners, considering how much paint you can get out of a beginner set?
I was wondering whether to buy a more expensive one right from the start, but this might be enough to start with.

I tried airbrush painting | わたぷら's Gunpla works