Ukiyo Zoshi was published as HTML in an unfinished state. The setting is partially and unevenly developed. The basic premise suggests several "factions" that vie for power and influence. The geographic setting consists of several "sectors" that connect to each other along defined pathways, all meeting at a central sector.
The action resolution system is referred to as the ISOMER System. It is presented as a standalone resolution mechanism using cards. Players flip a card and add their skill to the value, comparing this result against the game master's card flip added to a difficulty factor. In general, the card values swamp the modifiers making resolution mostly random. The rules favor narrative resolution whenever possible.