*Note: All chapters were split into multiple parts in the original serialization and later combined in the volume releases.*

Luka was born into a prestigious family known to all wizards. However, he was considered a dropout for his lack of magical ability and treated coldly by his parents. As soon as he graduated from magic school, he was kicked out from his house. He now earns a meager living by selling medicines he concocts. One day, he happens across a phantom beast covered in wounds in the forest and treats it. The beast tells him he wants to return the favor and offers him a master-servant contract. Unable to refuse, he ends up signing a contract with Alba, the mythical carbuncle of wealth and fame. (Source: Kasakura Shuppansha, translated) *Note: Includes 1 extra chapter.*

A sweet and dangerous fantasy about, a lonely person living alone in the whole world, as a bride-to-be! One day, Hana Kuzuno is hit by a black car and taken to the mansion of the "Onikan-gumi," a group of ghosts and demons. Hana is suspected of stealing her grandmother's treasure, the "Gyokuji," which is a counterpart to her grandmother's treasure, the Suisho, a memento of her grandmother. Hana is threatened with death if she does not find the Gyokuji, and is forced to live in the mansion. Furthermore, the clan leader declares that he will make Hana the bride of the next clan leader to prevent her from escaping... The dangerous and exciting life of a gangster begins, as he is pursued by Shiki, the most powerful member of the clan, and Byakuya, the young leader and a candidate for the next head of the clan.