Nezuko.

What's known

Here's what's meant to be true and not.

What we actually know

• Genetically it is a plain Psilocybe cubensis, not a hybrid, not a separate species, and not an albino or leucistic strain.
• It is a recent vendor-named strain rather than a documented old strain, so its paper trail is short and mostly comes from the spore vendors that distribute it.
• By the most consistent accounts it is a MagicMyco pick out of a Thai strain called Namuang, said to have been brought to wider circulation by a grower known as Doma.
• Fruitbodies are reported as golden-brown capped with thick stems and caps that tend to curl at the rim, a look people often describe for Thai-derived cubes.

What the community says

• The original Namuang material was first collected in the wild in Thailand before being isolated, though no collection details are documented.
• The name is community lore, said to honour Nezuko Kamado from the anime Demon Slayer, apparently for the idea of a soft, pretty look paired with hidden toughness.
• One claim circulating online calls it a Golden Teacher crossed with a leucistic or partly albino strain. The vendor descriptions of golden caps and a dark print do not support that, and it reads like a mix-up.
• Namuang is also the name of the 'Purple Waterfalls' on Koh Samui in Thailand, so the strain name may simply point at a place. Whether the spores genuinely trace back there is unconfirmed.

Where it came from

Nezuko is one of the modern wave of cubensis strains: a name that turned up through the spore trade in the last few years rather than something handed down from the old forum days. That means the starting point is that its history is thin and lightly documented, and almost everything you read about it traces back to the vendors selling it rather than to any independent record. Worth keeping in mind before anyone tells you a tidy origin story.

That said, the accounts are reasonably consistent. By most accounts Nezuko is a MagicMyco pick out of a Thai strain called Namuang, said to have been first collected in the wild in Thailand and brought into wider circulation by a grower remembered as Doma. As an isolation it is still just Psilocybe cubensis, a single tropical, dung-loving species, dressed up with a memorable name. The "Namuang" tag is a nice thread to pull: Na Muang is the famous Purple Waterfalls on Koh Samui, so the name may simply nod at a place, though whether the spores really trace to that spot is anyone's guess.

The name is the easy part. Nezuko is borrowed straight from the Demon Slayer heroine. The mushroom underneath is a plain, good-looking Thai-style cube.

What to expect at the scope

One claim worth heading off: you will sometimes see Nezuko described as a Golden Teacher crossed with a leucistic or partly albino strain, which would imply a pale, ghostly fruitbody. The actual descriptions point the other way, golden-brown caps and a normal dark print, so that "albino hybrid" strain looks like a mix-up rather than fact, possibly seeded by the way some catalogues file it next to Golden Teacher. Take it as lore, not lineage.