In a world where divinities are part of the daily life of all living beings, Yann, accompanied by Oleo, conducts research on mythology. The two men are soon joined by Liselotte, a girl chasing information about her origins. All three travel across the continent of Aegan studying local stories and helping others. But their daily work is often turned upside down by strange events and it seems that they are involved in a conflict that blurs the boundaries between mortal and eternal beings.