Kakyuu Maid wa Koushaku-sama no Shuai kara Nogarerarenai

Dahlia Belohr begins her role as a handmaiden with a strict order: never enter the annex. When an errand mistakenly assigned to her leads her there, she encounters a ghost said to haunt the building—the illegitimate son of the duke, a figure of shame and curse. Despite the dangers and forces working to separate them, a bond forms between Dahlia and the boy, offering both a sense of companionship amid their isolation.