Sei remains wary around the imperial prince, but after learning a bit more of his situation, she grows curious about what he's really doing in the country.
To combat the source of the miasma and the unusual monsters in the area, Sei and her faithful guard venture into the local mine, where a frightful danger awaits them...
It seems that Sei's duties as a Holy Saint are coming to an end with the purification of the last miasma swamp. Now Sei must start thinking about her future.
