The Paris World's Fair was approaching, and in 1889, Eiffel was very upset when the government asked Eiffel to design a very special project that would have a worldwide impact. Although it is an offer that someone else would be very happy with, this situation is unbearable for Eiffel because the project Eiffel wants to design is actually a subway project. Eiffel is compelled to accept this offer because the order is from the great place. However, the distressing events for Eiffel do not stop there because Eiffel's life will change completely when he sees a woman from his past again. At what point in his past did Eiffel recognize this woman? How will this mysterious woman affect Eiffel's life? Will Eiffel succeed in properly delivering the project the government has given him? What will be the end of the subway project in Eiffel's mind?