What are the penalties for bigamy in japan?

In Japan, bigamy is not explicitly defined as a criminal offense under the Penal Code; however, it is addressed in the context of family law. If someone enters into a second marriage while still legally married, the first marriage remains valid, and the second marriage can be deemed void. Additionally, the individual could face civil penalties such as loss of inheritance rights or issues regarding custody and property division. While criminal charges for bigamy are rare, they may arise in cases involving fraud or other related offenses.