He led them upstairs as he entered a lift and told them to enter the lift by batch and they waited for everyone to step on the second floor before they continued exploring the building.
"Since the first most needed thing in this game are potions, we decided to put the Alchemy section on this floor. Each room could accommodate a single alchemist and we made a section for group potion production, since we already thought that we might need to mass produce some potions in the future. Also, the special Alchemy Room is present here!" He told them as he showed them the individual rooms that have a single cauldron and a lot of flasks, and the equipment that alchemists needed to produce a potion.
Arie has a big part in the floor's setup since he was the person Monsieur asked for the designs and what equipment is needed for each room.