Question, do anyone of you know some good investments or stocks while in Japan?

I've seen NISA being offered in my Paypay account but I don't know how it works since my Japanese is still sht and auto-translate is confusing.

I was wondering if there's any good stocks or investments I can do while working in Japan and can get me good results even in just a year or so? In short, does anyone of you know some good passive income?