First of all, Jun-yup Koo is actually the first boyfriend who made public after the debut of Big S.. ASOS? As a group, their career developed not only in Taiwan Province Province of China, but also in Korea and Japan, so at that time, Da S contacted many Japanese and Korean artists, including Jun-yup Koo.
According to Big S's own disclosure, Big S and Jun-yup Koo often meet in the program, then they fall in love and then choose to be together. Big S appreciates Jun-yup Koo's talent very much, and Jun-yup Koo also thinks that Big S is a very lovely girl, but this relationship didn't come to the end.
Secondly, after breaking up with Jun-yup Koo, Big S fell in love with Lan Zhenglong and Vic Zhou. Although these two relationships lasted for several years, they finally broke up. After breaking up with Vic Zhou, Big S chose to enter the marriage hall with Wang Xiaofei. Their marriage lasted for ten years, but it ended completely at the end of 20021.Now both parties have entered a new stage of their lives.
Finally, after Jun-yup Koo learned that Big S and Wang Xiaofei were divorced, Jun-yup Koo found the phone number of Big S saved 20 years ago, and the result was really connected, so they got in touch. Later, they slowly found the feeling of love. They video every day. Although they didn't meet formally, Big S decided to stay with Jun-yup Koo, so they got the certificate.