An obligor who has delivered a thing belonging to another by way of performance of an obligation cannot demand the recovery of such thing, unless he effects a valid performance anew.
Civil Act — Article 463 (Delivery of thing belonging to another as performance of obligation)
민법 제463조
For AI agents and developers — get this article as JSON, with the English and current Korean effective dates and an outdated-translation flag, from the korea-law API or as an MCP tool:
https://mcp.apify.com?tools=kr-data/korea-law