S-GAME says some side quests might open story paths. The captured material does not establish missable quests, failure conditions or a reputation system.
The official claim is conditional and broad
S-GAME says Soul will meet citizens in need and that completing some side quests might open new story paths and deepen the player’s understanding of the Wulin. The wording does not identify which quests do this or promise that every side quest changes the story.
The eight-ending connection is secondary reporting
Wikipedia reports that side quests explore other characters, can have multiple story outcomes and relate to eight distinct endings. The official overview captured here does not name those endings or map a quest choice to an outcome.
Sources: Wikipedia — Phantom Blade Zero
Missability and reputation remain unknown
This snapshot gives no verified quest list, fail state, missable condition, honor or reputation rules, or exact reward path. Lack of such evidence is not proof that those systems do not exist. Do not publish a completion checklist from preview thumbnails or narration alone.
Sources: S-GAME — PlayStation.Blog side-quest overview · Wikipedia — Phantom Blade Zero

Sources & scope
- S-GAME — PlayStation.Blog side-quest overview — Official overview published 2026-08-17; says some side quests might open story paths, without listing quests or outcomes.
- Wikipedia — Phantom Blade Zero — Secondary snapshot accessed 2026-10-26; reports multiple outcomes and eight endings but does not provide a quest-to-ending map.