Abema is a Japanese streaming app that only works in Japan. If only there was a Virtual way to Privately Network to Japan… (It’s flaky, only works sometimes. No English language support for menus and stuff.)

I use this with the companion Android app on my Android TV, works great: https://streamingtvasia.com/live-streaming-japanese-tv-himawari/

It requires a yearly subscription though, it’s not free.

My Japanese teacher told us about something called Keyhole, but I haven’t used it myself and don’t know how it works.

There’s this website called aqstream. It has some Japanese and Korean live tv channels for free. Not an addon or app but I suppose someone else should be interested.