Shin Seul Ki from Single's Inferno comes from a rich family, which is not a secret. In the show, it was said that she is currently taking piano lessons at Seoul National University.
People say that the school is one of the best in the country. The family history of Shin Seul Ki, on the other hand, is where things get interesting.
The star with the baby face is pretty much a princess! Her father is one of the best plastic surgeons in South Korea.
He started BIO Plastic Surgery and is the head surgeon there. Koreans say that he is one of the best-paid surgeons because he came up with new Botox brands.
Fans think that this is why she didn't seem surprised or impressed by Dong Woo's job as a plastic surgeon, who was also a contestant.
Shin Seul Ki's family also owns a 20-story building in a wealthy part of Seoul called Sinsa-dong. That is a lot of money to pay for rent.
It is thought that the building itself is worth about 100 billion KRW, or about $78.2 million USD.
She also lives in Tower Palace, a high-end apartment. Fans think she lives in the penthouse or on the top few floors based on the views she posts on Instagram. It could cost between $7 and $9 million USD.
She might be one of the wealthiest people to ever be on the show.
Source[1]