Girls' Generation's Sunny has been detected as a liar! 

The investigation into Sunny's love life took place at her neighbor actress Hwang Shin Hye's house. Sunny, Hwang Shin Hye, and Lee Jine (Hwang Shin Hye's daughter) asked each other questions about dating.

First, Hwang Shin Hye was asked, "Are you open to dating," and answered, "Yes," but was detected as lying. Hwang Shin Hye then said, "Something's wrong. I am very open. Why would you be closed to dating," as she was rather mad at the results. 

Lee Jine then answered, "No," to the question, "Do you currently have a guy you like?" However, she was also detected as a liar. 

Lastly, Sunny said, "I don't have a boyfriend," but the lie detector surprised everyone as it said her answer was a lie. 

Sunny responded, "That is so weird," while laughing. She also said, "Now we all look weird. What is this?"