What is confirmed
The achievement condition establishes that a friendship milestone with N1-C0 exists.
What is not assumed
This guide does not invent gift requirements, dialogue trees or quest items that are not present in the verified sources.
Track encounter and completion separately
If you meet N1-C0 but the friendship goal does not trigger, note that as an incomplete character thread rather than assuming the encounter itself was sufficient.
Use the cleanup page late-game
Character-specific goals like N1-C0 are best audited after major progression so you can distinguish a missing trigger from an area you simply have not reached.
Core game facts are limited to the official Steam store/demo and official Steam news; achievement-specific scope is based on released platform achievement metadata.
Common questions
Does this page invent quest steps?+
No. It uses the confirmed character/location clue and adds exact route steps only after verification.
Where should I go for full progression?+
Use the main walkthrough for route order, then return here for the named entity or location.