Yes, it is grounds for divorce.Our civil law stipulates six causes for judicial divorce (Article 840 of the civil law).The question you asked about ‘when the other party engages in prostitution’ is ‘when the spouse engages in unfaithfulness’ among the above reasons.This can be considered applicable, and the trust between the couple is broken due to the spouse engaging in prostitution.If the marriage between the two parties is irretrievably broken downThis also applies when there are other serious reasons that make it difficult to continue the marriage, so a divorce request can be made to the family court on this basis.This is a procedure in accordance with Korean law. For foreigners, detailed procedures may vary. Please chat or email for specific details.