Japan, and possibly Hong Kong, South Korea and Thailand are likely to have scenes, albeit very underground. China legally produces many of the psychedelics on the market -- the 2C-x's and several others -- but it's extremely unlikely that there's a psychedelic community there. As for the rest of East Asia, it's doubtful that there is any kind of psychedelic scene.
Anyhow, we've already gone way off-topic, so let me try to bring it back by saying that 1P-LSD doesn't come from this region of the world.
Dudes and Dudettes;
Asian countries are right there with the rest of the world on psychedelics, and each of the countries you've mentioned have communities just like our common drug communities... Though they tend to go about things slightly different than us in most situations.
The commonalities with us is that all the same drugs are used, and, for the most part, for identical purposes and situations. If you are in a club with an electronic DJ (House, techno, etc.), you can get substances guaranteed. There's usually less competition for dealers at their parties, but you can get anything you want, just like Europe and North America. Prices are more expensive, and drug selections vary depending on the preferences of the clients in the area.
For instance, in Japan, you'll likely be able to find weed, MDMA, MDA or E pills, Coca, maybe acid (almost definitely not LSD-25, likely a 25x-NBOMe), and almost guaranteed there'll be amphetamines or methamphetamines there. You likely won't be able to find GHB or ketamine. However... Go to China and you will find ketamine in a club easier than any of the other drugs I'd mentioned above.
In China, ketamine seems to be the most popular with their people, Japan seemed to be weed and ecstacy/MDMA, and Thailand is cocaine and meth, from what I've noticed. I'll check with a friend, but not sure on Korea, I'd imagine it'd likely be cocaine and other stimulants, as their drug laws are almost as strict as Thailand's.
From my personal experience as a DJ and having been to some of these countries, and having friends that live in or recently left the other countries mentioned, less of the population does drugs, but much more than you'd think... They just do them in safer, non-public places and don't advertise what they fuck with.
P.S. Mushrooms were not illegal up until about 15 years ago in Japan, and they sold them at head shops.
