Is There a Risk of Japanese Naturalization Being Revoked?

Recently, there have been discussions suggesting that it should be possible to revoke the Japanese citizenship of naturalized individuals. In fact, some foreign nationals who visit our office express concern, asking, "Even if I naturalize, is there a risk that my Japanese citizenship could be taken away?"
However, Japan does not recognize dual citizenship. Since naturalized citizens are generally required to renounce their original nationality, they will hold only Japanese citizenship (unless their home country does not permit the renunciation of nationality). If the Japanese government were to revoke the citizenship of someone who holds only Japanese nationality, that person would become stateless. Therefore, such a measure is considered highly impractical.
That being said, there is one critical exception. If, after being granted naturalization, an individual fails to renounce their original nationality despite being able to do so, they will remain in a state of dual citizenship. In such cases, there is a possibility that their naturalization could be revoked.

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AKIRA YAMAMOTO.AKIRA

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