In a case where a tenant's landlord's unauthorized entry and property damage caused the destruction of tens of millions of won worth of valuables, the burden of proving damages falls on the victim (Article 750 of the Civil Code). In the absence of receipts, indirect evidence such as photos, prices, and testimonies must be prepared.

Kim Jeon-soo, a lawyer at Hanbyol Law LLC, advises that "court appraisal by a court-appointed appraiser after filing a lawsuit" is the decisive tool for expensive or difficult-to-value artifacts. Therefore, she recommends filing a civil lawsuit first and having an appraisal process to determine the objective value.

Kim also suggests that you should consider the possibility of a court's ex officio judgment under Article 202(2) of the Civil Procedure Act and Supreme Court precedents, and prove and claim damages based on the appraisal results and other indirect evidence.