'Single's Inferno 5', Amid Lee Sung Hun's Cheating Buzz, His Alleged High-Profile Family Shocks Fans

Single's Inferno Season 5 has already reached its second half, with things getting more intense with each new episode. The latest instalment of the hit South Korean reality dating series premiered on January 20, 2026, and its latest episodes (ep 8, 9, 10) are set to drop on February 3, 2026. As the show heads to its conclusion, fans have been digging up information about the participants. Among them, Lee Sung Hun has been making headlines for his cheating allegations, and now, the latest reports have highlighted another aspect of the contestant that has brought him back to the spotlight, his family background.

Does Lee Sung Hun have a connection to a high-profile South Korean diplomat?

A February 2026 report by Koreaboo elaborated on the recently circulated rumours regarding the background of 25-year-old, Lee Sung Hun (also known as Samuel Lee). The Single's Inferno 5 contestant allegedly has familial ties to a former South Korean President. According to online speculation in Korean communities, he is alleged to be the maternal grandson of former South Korean President, Lee Myung Bak. Rumour has it that Sung Hun's mother is the former president's eldest daughter (born in 1971 and a Juilliard graduate), while his father is reportedly an executive at Samsung Electronics.

Why do fans think the rumours regarding Lee Sung Hun's family might be true?

Many netizens have noted a striking resemblance between Lee Sung Hun and the former president, Lee Myung Bak, specifically pointing to their alleged similar voice and physical resemblance. According to the fans, the duo has similar eyes and lip shapes. Additionally, the Single's Inferno 5 contestant's high-spec profile is seen by fans as consistent with the background of a child from an influential family. Sung Hun has a degree in computer science from UC Berkeley and a career as a quant trader in New York City. However, it is worth noting that these claims remain unconfirmed by the contestant or the Netflix showmakers.

Before Lee Sung Hun's alleged background, his cheating allegations brought him to the spotlight

Lee Sung Hun became the subject of cheating allegations. The claims surfaced on social media platforms like Reddit, where users shared screenshots and stories from his past relationship. Sung Hun has been accused of cheating on his ex-girlfriend, popular influencer, Hena Yang. The rumours were heightened after online users noticed that she removed all her photos and videos with Sung Hun following the airing of Single's Inferno 5, and he too changed his Instagram ID from @ssamuellee to @snhgnl after the show's release, according to Filmibeat.

Adding fuel to the fire, Lee Sung Hun's account was reportedly deleted entirely on January 21, 2026, just a day after Single's Inferno Season 5 premiered. He has publicly denied the cheating allegations via Instagram, stating that the claims are untrue. However, the issue didn't resolve following his clarification. The cheating specualtions heightened after an influencer named FlawlessKevin claimed to have gone on a date with Sung Hun during a time when he was engaged with his other commitments. He used his social media again to explain what actually happened back then.

Sung Hun clarified that his meeting with FlawlessKevin was only for a casual meal between friends, and nothing more. Some online users were convinced by Sung Hun's statement and supported him, saying there was no proper evidence to substantiate the rumours about him. Meanwhile, some other Single's Inferno fans alleged that Sung Hun was matched with the influencer on a dating app, and that their meet-up was actually a one-on-one date. The online users further claimed that Sung Hun and FlawlessKevin indulged in physical intimacy.

What are your thoughts on Lee Sung Hun's high-profile background and cheating accusations? Let us know.

Also Read: Choi Mina Sue's Friend Exposed 'Single's Inferno 5' For Portraying Her As 'Antagonist'? Find Out

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