[Machine Translation] A night of tumultuous celebrations has dawned. Ekaterina is assigned to visit a mountain temple as a substitute for her too-busy brother, Alexei. She is sad to leave her beloved brother, but she is ready to go on her first journey! Along the way, a chance encounter with a god brings her into contact with the mysteries of this world and reincarnation, but her journey goes smoothly as she actually sees and learns about the territory of Yoolnova.... But then, the strongest hidden character attacks unexpectedly, and the villainess (in many ways) seems to be in a big trouble...?