I'm not Japanese but I've always looked after my consoles. I just traded in my PS4 Pro and I had all the plastics, foam wrap, cardboard, the box and the leaflets. When I traded it in, the guy in the shop thought I'd bought it from somewhere else and brought it in to trade it.

Not sure why I do it, but if I'm going to spend hundreds on something, I'll look after it and keep everything it comes with just in case.

With my understanding, I'd say kind of.

When you initially plug in the HDD, the console will ask to format it, wiping all the data you have stored. (I'm unsure of any bypass).

Also, with next Gen games (ps5, XboxSX) you can store them on HDD but you won't be able to play them from the HDD, unlike PS4 and Xbox one games