Compared to Gloomhaven, the underground world of the Summoner Alliance was more vast and challenging to fully explore.0

During his time here, Sein learned that over a dozen demihuman nations with populations exceeding a hundred million were situated around the entrances to the Underworld, adjacent to the Summoner Alliance.0

It was believed that even larger demihuman nations existed in deeper underground spaces.0

The richness of the underground world’s ecosystem rivaled that of the surface. It was home to a diverse array of demihumans, along with magic beasts and numerous dark creatures.0

Having conducted extensive research on the Underworld, Sein was aware that the apex predator of the Magus World’s underground...0