2. Defendant B: (a) KRW 18,991,958 to the Plaintiff; and (b) May 2019 to the Plaintiff.

A. Defendant B, who was the husband and wife of Defendant C on May 4, 2007, divorced on May 4, 2007, and completed the process of entering the school as a securities professional at the Korea University Lifelong Education Institute on November 2008, and thereafter, the insurance solicitor business.

B. Around November 2017, the Plaintiff divided conversations on investment in virtual currency with Defendant C, which came to know at a golf gathering, and introduced Defendant B around January 2018 through the said Defendant, thereby investing in virtual currency.

C. From January 6, 2018 to March 27, 2018, the Plaintiff paid the Defendants a total of KRW 598,000,000 (= KRW 550,000,000) as follows, and thereafter, received a refund of KRW 216,40,000 in total from the Defendants from March 27, 2018 to December 21, 2018.

Defendant C 20,00,000 won on January 6, 2018 20,000 won on 150,00,000 won on 8, 2018, 10,000 won on 30,00,00 won on 15, 2018, 16,000 won on 16, 20,000,000 won on 16, 30,000 on 17, 208, 200,000 on 10,000 on 16, 208,00 on 16,00 on 17, 200,00 on 208,00 on 16,00 on 10,000 on 20,000 on 26,000 on 20,000 won on 20,000 won on 18,2010

2. The parties' assertion

A. Plaintiff 1) The Defendant C introduced Defendant B as the principal of virtual currency experts to the Plaintiff. Defendant B promised to engage in the conduct of virtual currency experts, and to contribute to 100% of the principal to the Plaintiff, and then, he defraudeds the amount of virtual currency investment from the Plaintiff. Therefore, the Defendants, as joint tortfeasor, have the obligation to jointly pay the Plaintiff the amount of KRW 381,60,000 (= KRW 598,000,000 - KRW 216,400,000) as compensation for damages, and the delay damages therefor. (2) The Defendant B received from the Plaintiff.