The victim began communicating with a woman from Japan through a dating app, and their communication lasted for 46 days. Believing in the seriousness of his acquaintance's feelings, he promised to marry her. Then the woman informed him that they needed to prepare financially for the wedding, so she convinced him to deposit money on a cryptocurrency platform that she used herself. At first, the man was reluctant to do this due to a lack of knowledge about digital assets, but fearing the loss of his beloved, he agreed to invest 200,000 won (approximately $145).