19 vacation days a year for Japan seems high. Most companies start at around 10-12 and scale up to about 20ish. I have been with my company a long time in a higher position, I think I get about 19/year (can roll over one year). We don't get distinct sick days either. It feels like they are factoring in national holidays or something.

I admit I am terrible about using my PTO though, I think I took 5 days last year which is the legally required minimum. Don't be me, take your days off.