Limbus Company B Side

The Manager of Limbus Company Dante stumbled upon a hidden door in their room, despite Faust Initial warning's of not touching it, their curiosity got to them, what secrets lies in that door?
Upon Opening a door, Dante is sent to a Another place
But that place wasn't a ordinary place Dante didn't know about, a world where a another sinners have taken the place of the original 13 sinners.
Artist who made this art: ivy (675671), found on Pixiv