Also, cousins are not included in the lists of prohibited relationships. However, the Bible prohibits relationships with any close blood relative (Leviticus 18:6).
In law, a prohibited degree of kinship refers to a degree of consanguinity (blood relatedness) and sometimes affinity (relation by marriage or sexual relationship) between persons that results in certain actions between them being illegal. Two major examples of prohibited degrees are found in incest and nepotism.
Who can you not marry?
You may not marry your:Grandmother or grandfather.Mother or father.Fathers sister (aunt) or brother (uncle)Mothers sister (aunt) or brother (uncle)Sister or brother.Fathers daughter (half sister) or son (half brother)Mothers daughter (half sister) or son (half brother)Daughter or son.More items •22 May 2020
Can siblings get married in Japan?
(Article 731) A minor shall obtain the consent of at least one parent to marry. Lineal relatives by blood, collateral relatives within the third degree of kinship by blood #2, may not marry, except between an adopted child and their collateral relatives by blood through adoption.