South Korean police have arrested four Chinese nationals in connection with the murder of a Chinese man in Jeju City during a cryptocurrency transaction. The victim, identified as Mr. A, was found in a hotel room with 10 stab wounds and had reportedly been robbed of 85 million won (approximately $52,500). One suspect, a Chinese woman in her 30s, turned herself in at Seongsan Police Station, while two others were apprehended at Jeju International Airport attempting to flee. A fourth suspect, who was reportedly involved in a casino, was also detained. Police are investigating the incident as a robbery-murder tied to a private cryptocurrency exchange. Authorities have noted a rise in crimes involving cryptocurrency transactions in Jeju, including previous cases of theft and assault. The visa-waiver entry system has been identified as a factor enabling such incidents.