Romeo is a kindhearted and courageous boy living with his family in a small village in Switzerland. Unfortunately, Romeo becomes the interest of a man named Luini, known as "The God of Death," who is infamous for buying children and selling them as chimney sweeps in Milan. While visiting the village, Luini burns down Romeo's family cornfield in an attempt to have Romeo as his own. With the cornfield gone and his father sustaining a head injury trying to put out the fire, Romeo bravely sells himself to the God of Death in order to help his family afford a doctor. On his way to Milan, Romeo meets a boy named Alfredo Martini and they quickly become friends. Just as Alfredo is sold to a different master, the two boys swear eternal friendship and vow to meet again. As a chimney sweep, Romeo faces many hardships and abuse, especially from his master's family and a gang known as the Wolf Pack. But after reuniting with Alfredo, the two form a fraternity of chimney sweeps called "The Black Brothers," who will learn to fight against the Wolf Pack and help each other in times of need. [Written by MAL Rewrite]

Shinkurou Kurenai is a 16-year-old student by day and a dispute mediator by night. Though kind-hearted and patient, due to his tragic past, he has trained for years to live on. Now, despite his unimposing appearance, he is a strong martial artist, who also possesses a strange power. While taking various jobs for his employer, Benika Juuzawa, one assignment leads Shinkurou to live with Murasaki Kuhouin as her bodyguard. Murasaki is the seven-year-old daughter of a plutocratic family, who escaped her home under peculiar circumstances with Benika's help. Commoner life, in her eyes, seems bizarre. However, by interacting with her neighbors, she grows more accustomed to the daily routine, and rids herself of her snobbish behavior, gradually growing attached to Shinkurou. Though many details of the job remain unclear, Shinkurou still strives to protect the young lady. But to make things more complicated, he also lacks a crucial fact—what is the real threat against Murasaki? [Written by MAL Rewrite]

A Kure-nai OVA featuring new character designs closer to the novel/manga.

Two years after meeting Aoi, Kaoru and gang are still up to their normal habits. Kaoru now in grad school and the tenants being as rowdy as ever what will become of Aoi and Kaoru's love. Two years has passed since Aoi and Kaoru were freed from the bonds of their families. They continue to live their normal lives with their usual friends in their house.