Romeo, a young boy living in the Alps of Italian Switzerland, signs a contract with a shady individual to pay for his sick father's doctor, who will take him across the mountains to Italy, to Milan, where he will be sold as a chimney sweep's helper. Thus begins Romeo's journey, amidst abuse and violence, during which he will form lasting and deep bonds with other child chimney sweeps, coming to form a fraternity called "The Black Brothers," who will all learn to help each other in times of need.
— Description from AniList community (anilist.co).
