Rejang people customary law, severe penalties such as adultery are provided; which is in line with Islamic laws that makes it easier for the Rejang people and also one of the earliest people group to convert to Islam. In the present era, despite a number of them still adhere to traditional cultural practices, many Rejang people have received higher education and have been represented in various modern skilled professions or as government employees. There are a few festivals that are celebrated by the Rejang people especially, "Rayo" or "Idulfitri", "Rayo Ajai" or "Iduladha", annual celebration of each Regencies as well as Indonesian
Nuaulu people central Seram Island, whilst the Southern group inhabit five villages on the south coast and interior of Amahai District. These two languages are not mutually intelligible. The majority of the Nuaulu people still adhere to their traditional religion which is based on a belief that the ancestors control everyday life and if the traditions they handed down are not followed correctly the living will be punished with sickness, death, and lack of prosperity. Nuaulu religion also states that there is an original creator called Upu Kuanahatana, and that there is powerful magic which people can use for good, or bad,