Chen Yu agreed to the conditions set by the Americans, exchanging his full set of Dragon Blood Potion and training system for Dragon-descent professions in return for their information on the Ancient Inca City of Gold and assistance in its excavation.
However, he did not intend to explore the City of Gold immediately, having just amassed quite a treasure trove from the Garden of Osiris, which still needed to be dealt with. His thoughts were not focused on exploring the City of Gold.
Moreover, as the end of the year approached, the Nobel Prize selection process officially began. Even though it was still in the nomination stage, both the Japanese Government and the American and Russian Governments had previously promised to promote Chen Yu and Hiromi Jounouchi for the Nobel Prize in Medicine.