Greenver dies unexpectedly - the head of the noble family of the republic of Morigata, who has great weight in the politics of the republic. But suddenly it turns out that before his death he managed to hide all his wealth and the heirs of the family face ruin and loss of status. In a desperate attempt to find what they have hidden, they submit an application to the Council of Magicians for the Invocation ritual, which, in their opinion, will help find the family's money. However, instead of pointing to the place where the treasure is hidden, the Invocation spell pulls out the soul of a strange girl, Natalia Astakhova, from beyond the worlds. The magician performing the call is sure that there is no mistake and, if a living person appeared, for the first time in several hundred years, then it is he who is the key to finding an inheritance. This means that she has to solve the riddle of old Greenver. In exchange for help in finding her, they promise to return her back...