The manservant is building the Mönster, a swedish self-assembly slave.
Talk to the manservant about the Mönster. He needs:
Unlike normal walkthroughs, in Nice Game Hints you can select just the puzzle you want hints for. Here are listed the puzzles for "Help manservant build the Mönster" in Lucy Dreaming. The guide you choose only contains information about that puzzle, reducing possible spoilers for other puzzles.