Once you are done with Monocco’s Station, you can head straight to Old Lumiere or take some time to explore the east and west exits first. Both have collectibles and enemies worth dealing with before you move on. This guide covers everything in both directions.
East Exit
Head through the east portal and walk down the main path. On the right side, you will spot an NPC named Grandis. Talk to him and he will ask if you are looking for your former home, Old Lumiere. Choose “No” and he will give you a Colour of Lumina.
Past Grandis, look to the right for a panel on the side of the path. Interact with it to open a shortcut back to the south of Monocco’s Station. Come back to the main path and look toward the center where you will find black rocks and snow-covered trees. There are crates here with a Colour of Lumina inside.
Take the left path from this spot. After a few steps, a group of enemies will appear. Defeating them rewards you with the Energising Pain Pictos, the Ramasson weapon, and the Glaceso weapon.
After the fight, take the left path again and follow it until you reach a portal. Turn right from the portal and on the right side you will find the Fueling Break Pictos. Keep going along this path and you will reach another portal called Frozen Hearts.
That is everything in the east area. Head back to Monocco’s Station and take the west path.
West Exit
Go through the west portal and head down the slope. You will see a group of enemies standing near some large melting golden swords. Take them down to get the Chation weapon and the Longer Shell Pictos.
After the fight, go back slightly and look for a small path on the left just before where the enemies were standing. Follow it to a small camp with a Colour of Lumina inside. After collecting it, look left and you will see a broken building. Follow that path until a beach comes into view in the distance.
Get to the beach and head south to find a portal leading to Gestral Beach. Swim to the other side of the shore and activate the panel there to create a shortcut bridge back to the area south of Monocco’s Station.
Explore this side of the shore, and you will come across enemies: a Stalact, a Ceramic Chevalière, and a Bruler. Beating them gives you the Brulerum weapon, the Stalum weapon, and a Resplendent Chroma Catalyst. Just behind where they were standing is a small camp with the Charging Tint Pictos inside.
Keep following the path and you will find a Gestral merchant named Blakora. He sells the Verso Haircut Bun and the Lune Haircut Ponytail.
Head back to the shore you came from. On the left side, there is a path running between two broken buildings. Take it. After a few steps, you will find a Gestral merchant named Carnovi who sells the Sciel Outfit Skirt.
Keep going along this path. On the right side, there is a camp with Journal Expedition 47 inside. Grab it. At the far end of the path, a Bourgeon is waiting. Defeat it to get the Burning Death Pictos, a Bourgeon Skin, and a Polished Chroma Catalyst. After the fight, check the small camp in the same area for the Breaking Burn Pictos.
Go back to the main path where you turned left between the two broken buildings. This time, walk straight ahead. After a while, on the left side, you will find a group of enemies: a Portier, a Hexga, and a Ceramic Chevalière. Beat them to obtain the Confident Pictos and collect the Colour of Lumina nearby.
Keep moving north and you will reach the Esoteric Ruins portal. Continue along the main path past it and you will find a Colour of Lumina in a small camp. Grab it, then head up the slope ahead to find the portal to Old Lumiere.
The Camp
Before going through to Old Lumiere, head back to camp. Talk to the different characters to build up your relationships with them. When you are ready, choose “Go to sleep” at the campfire to move the story forward and enter Old Lumiere.