Scattered across the Continent in Clair Obscur: Expedition 33 are ten White Nevrons — pale, peaceful monsters that ask for help instead of a fight. Completing every one of their requests unlocks the “Aiding the Enemy” achievement and, more importantly, hands over a pile of Colour of Lumina (the items that grant Lumina Points used to equip more Lumina skills on each character), plus several of the strongest Pictos in the game. This guide walks through where each Nevron hides, what it wants, and what you get — with an emphasis on the harder-to-find Act 2 and Act 3 encounters.
What changed
White Nevron quests are optional side interactions, not story milestones, so the game never flags them on the map or tracks completion in a journal. The only way to know whether you have finished one is to revisit each Nevron and exhaust its dialogue — and the game is explicit that you must speak to a Nevron again after handing over its requested item to actually receive the reward. Miss that second conversation and the “Aiding the Enemy” achievement will not unlock even if you did every task.
The structure is consistent across all ten: find the white Nevron, retrieve a specific item or complete a small challenge, return and confirm, then choose to spare or attack. The final Nevron, Blanche, reads whether you spared or killed the others and pays out accordingly.
How it works
The spare-versus-kill choice is the core decision. Sparing every Nevron (with one designed exception in Act 3) leads Blanche to hand over 100 Colour of Lumina — roughly twenty Lumina Points if split evenly across the party, and far more useful in the late game than the small Chroma and catalyst drops you get for killing them. If you killed any Nevron, Blanche forces a boss fight and the reward drops to 10 Colour of Lumina and two Grandiose Chroma Catalysts. The community consensus, echoed across every major guide, is to spare all of them, collect Blanche’s reward, and only then circle back if you want the individual kill drops.
Two mechanics gate progress to later Nevrons: Esquie’s swimming ability, unlocked during Act 2, opens the northern and icy overworld zones; Esquie’s flight, unlocked in Act 3, is required to reach the Floating Cemetery and The Fountain. Plan accordingly — the last two Nevrons are strictly post-flight.
Act 1 Nevrons
These five sit in the early Continent areas reachable on foot.
Jar — Spring Meadows. Impossible to miss; he stands by the Expedition Flag on the main path toward the Indigo Tree. He wants “light.” Head through the tunnel behind the flag, break the barrels in the overgrown area to find Resin, return it, then shoot the top of his staff to light it. Speak again for a Healing Tint Shardshard. A separate copy of a game world running on its own server; players on one shard don't share the world with another. — a permanent extra healing tint charge.
Demineur — Flying Waters. After leaving the manor and meeting Noco, ignore the ship-cave and take the right path into a large white jar. The Demineur wants an Intact Mine. Hop across the round platforms to the right to grab it, then return. Reward: the Deminerim weapon for Lune.
Small Bourgeon — The Small Bourgeon (side area west of Ancient Sanctuary). A tiny white Bourgeon wants a Bourgeon Skin, dropped by any standard Bourgeon boss (one sits in Flying Waters, another right of Stone Wave Cliffs). Hand it over, leave and re-enter to find he has grown, then interact and pick up the Colour of Lumina he drops. Speak once more to finish.
Hexga — Stone Wave Cliffs, Old Farm. A collapsed white Hexga on the main path wants three Glowing Rock Crystals from the nearby cave. Break each crystal with an attack or free-aim shot: first on the left near a patrolling enemy, second up the central slope behind a pillar, third on the right past a Rocher holding a white pillar. Return them for the Auto Shell Pictos, which grants the Shell bonus at the start of every battle.
Benisseur — Red Woods. A fountain Nevron that wants Chroma donations in escalating increments: 5,000, then 10,000, then 25,000, then 50,000 — 90,000 total. No time limit, so return when flush. Final reward: the Recovery Pictos, which restores 10% of HP at the start of each turn, widely rated one of the best Pictos in the game.
Act 2 Nevrons
Act 2 opens the northern Continent after the Forgotten Battlefield and Monoco’s Station. Three Nevrons live here.
Troubadour — Stone Quarry (east of Forgotten Battlefield’s north exit). A guilty musician wants to relearn his instrument. Agree and enter a rhythm challenge: dodge or parry the red “wrong” orbs, but let the green “correct” orbs hit you. Complete three increasingly long sequences — a single red hit restarts the current sequence. Reward: the Healing Parry Pictos, excellent for parry-focused builds.
Portier — Esoteric Ruins (west of Old Lumiere). A glowing orb asks you to retrieve an item from a maze. The maze opens and closes doors based on which braziers you shoot with free-aim. The reliable path: light the central brazier, go left, turn around and shoot the first-room brazier, shoot the current room’s brazier, pass through, turn right to the end room, then turn and shoot the brazier you just passed. Grab the Wooden Boards on the slanted roof, then use grapple points to return. Reward: the Protecting Heal Pictos.
Danseuse — Frozen Hearts, Glacial Falls (northeast of Monoco’s Station). Cross the bridge past the Expedition 51 flag, climb the mountain, take the left cave, ride the Chroma line, and follow the train tracks to a cliff. Drop to the frozen lava below where white Danseuse wait. Accept the dance and parry a 15-hit combo — the same three-strike pattern normal Danseuse use, repeated faster. Dying just returns you to the start to retry. Reward: the Danseuse Outfit for Lune.
Act 3 Nevrons
Both require Esquie’s flight, unlocked partway through Act 3.
Chalier — Floating Cemetery (floating island southwest of Gestral Beach). Choose a weapon for him to wield (hammer is the slowest and easiest to evade; he is weak to Light and resists Dark), then fight him inside the building. After winning, he asks you to kill him — and this is the one designed exception: agree, because killing the Chalier does not count against Blanche’s spare-all reward. Reward: the Auto Powerful Pictos, which auto-applies Powerful for three turns at the start of battle. If you spare him you lose this Pictos entirely.
Blanche — The Fountain (west of Spring Meadows, flight-gated). No challenge. If you spared every other Nevron, Blanche gives 100 Colour of Lumina. If you killed any, you fight him and receive only 10 Colour of Lumina plus two Grandiose Chroma Catalysts. Either way, finishing this interaction unlocks “Aiding the Enemy.” If the achievement does not pop, return to each prior Nevron and exhaust dialogue — a missed second conversation is the usual culprit.
Build path
A clean completion order: grab Jar, Demineur, Small Bourgeon, Hexga, and Benisseur during Act 1 while the areas are fresh; pick up Troubadour, Portier, and Danseuse as Act 2 unlocks swimming and the northern zones; after Esquie gains flight in Act 3, clear Chalier (kill him for the Pictos) and finally Blanche. Defer Benisseur’s 90,000-Chroma cost until later Acts when Chroma is plentiful. Keep all spares intact through Blanche, then optionally backtrack for individual kill drops. Several of these Pictos — Recovery, Auto Shell, Healing Parry, Auto Powerful — stay relevant into New Game Plus, so the detour pays off well beyond the achievement.