Myth is not the past, but another layer of reality isolated by the [Wall of Forgotten]. The protagonist is a [mythical archaeologist] who can temporarily open gaps in the wall by excavating ruins, borrowing the power of the mythical era or summoning the projection of mythical creatures. As the dig goes deeper, the protagonist discovers that the wall of oblivion is crumbling, and the two layers of reality are about to collide and merge. He must find a way to reconstruct the order of coexistence between the two worlds before the rules of the mythical age swallow up modern civilization, and fight against the ancient gods and demons who long to return.