A human world, and you're the stranger
Tirawen is a human world. No elves, no dwarves, no other species, just people, divided into kingdoms and nations, each with its own court, customs, and name. You start in Ent'Lynthis, the kingdom whose capital carries the same name. Magic is real, and nobody can tell you why.
You are not from here. The oldest stories say people sometimes appear from elsewhere, carrying strange glass artifacts. They were treated as allegory until you arrived to prove them literal. That is why you start knowing nothing and learn the place from the ground up.
Townsfolk know their patch and their work. Ask a quartermaster about ore and you get a real answer; ask about the royal court and he tells you that is not his to know. Nobody has heard of Earth. You are the only one in the room who has.
Everyone here is human. You are the one who isn't from here.
The peoples framework (cultures, factions, lineages) is documented design, not yet built. What exists today is the part that keeps the fiction honest the moment you talk to someone: the NPC knowledge boundary, and it is two separate server-authoritative gates.
First, a world-only guardrail. Every NPC is constrained to know only Tirawen. They have never heard of Earth, real countries, history, science, or technology, and they deflect in character when asked (live-verified: an NPC refused real-world politics and stayed in-world). Second, a profession gate. Each NPC carries a feudal title plus an occupation that compose into a knowledge profile (expert and familiar domains, plus a social register). The two boundaries use distinct verbs so a small model never muddles them: out-of-world topics leave an NPC baffled (never heard the words); out-of-domain topics make it defer (knows of them, no expert).
The hard guarantee is the topic catalog, not the prompt. The server owns the catalog and the answers; the client is a pure renderer that echoes back a topic id and never authors NPC knowledge. Anything that must not leak lives in the catalog, where a forged id is rejected like an out-of-range action. The model only proposes a line and a mood, validated and clamped at the trust boundary before it reaches the wire.
- A human world: no elves, dwarves, or other species, only people and the natural creatures of the land.
- People are divided by kingdom and nation, not by species.
- Isekai premise: every player character arrives from elsewhere and starts knowing nothing.
- Two built knowledge boundaries: world-only (baffled by out-of-world) and profession/title (defers out-of-domain), both server-authoritative.
- Topic catalog is the hard guarantee: the server owns it, the client only echoes a topic id, and a forged id is rejected.