Took me a second, but the idea is that you’re still teleworking for your regular, not-Japanese job right? Sounds like a sweet deal IF there are places you can rent out short term
Yea, you get the "living in Japan" experience without the "working in Japan" experience.
Probably gonna be a decent boost to the Japanese economy while making some weebs sophisticated well-paid IT professionals quite happy at the same time.
Japanese pay is quite low compared to eg the US. 10m jpy is a very decent income in Japan. You won't find many people not in high skilled tech jobs or years of experience with it.