Professor Charles is a professor of history at the famous university. If we like to explain it in simple words, his work consists of searching for artifacts that mean something about the past of a particular civilization, but also about the development of the whole civilization in general. Those artifacts can be found everywhere, and it seems that the professor's workplace itself, that is, the university where he teaches, hides many important things. He believes that in the past, many valuable works and subjects have been brought to this university, which is of inestimable importance for the culture of his country. He thinks they are here somewhere, but even though he spends every day in this place, they still need to be found. Professor Charles asks his best student Lisa to help him in his mission.