Himekishi-sama no Himo

Gray Neighbor is a dungeon city built on crime, greed, and death, yet Princess Knight Arwin continues descending into its depths in search of a treasure that could rebuild her fallen kingdom. At her side is the man everyone despises: Matthew, dismissed throughout the city as a cowardly parasite who wastes her money on drink and gambling. What they do not know is that much of that image is deliberate. Out of Arwin's sight, Matthew works with ruthless efficiency to remove threats she cannot confront openly, willing to remain hated by everyone around him as long as that reputation keeps the princess alive.