A Jorōgumo based on the canonical image found in Edo-period sources. A great spider, having aged into a yokai, assumes the form of a young woman or a mother and child to exploit lapses in human judgment. She appears at liminal places such as waterfalls, deep pools, verandas at the edges of mountain villages, and abandoned houses, casting many layers of silk to bind victims and dull their judgment through sleep or enchantment. Toriyama Sekien depicted her commanding fire-breathing spiderlings, helping fix motifs of acting in groups and fleeing into the upper parts of houses such as the attic. In some regions she is deified as a protector against drowning, with stones or small shrines raised in her honor. Many tales end with her being thwarted by human wit—cutting her threads and tying them to a stump, or seeing through her disguise—while others warn of taboos where breaking a vow of secrecy brings death, or of fatal infatuations that drain one’s life. This profile avoids modern embellishment and stays within the breadth of existing tradition.