Lee Kwan-hee and Yu Si-eun share daily life two months into dating
After failing to pair up on Netflix's Single's Inferno 3, Lee Kwan-hee and Yu Si-eun are now sharing their real-life romance on YouTube.
Lee Kwan-hee and Yu Si-eun, who did not become a final couple on the Netflix dating reality show 'Single's Inferno 3', have transitioned from a reality show narrative to a real-life romance and are now stepping forward to share their private dating lives with the public. As it has been less than two months since they officially acknowledged their relationship this past July, observers suggest their relationship has entered a new phase by putting couple-oriented content at the forefront.

On the 10th, Yu released a video titled 'It's been a while' on her YouTube channel. In the video, Lee and Yu appear side-by-side, showing the natural bickering typical of a romantic couple.
The two drew laughter from viewers by telling the camera, "Yes, the two of us have joined forces." Yu revealed the authentic atmosphere of a real couple rather than a relationship manufactured for broadcasting, exposing Lee by saying, "He has a disease where he goes astray the moment the camera turns on," while adding, "But he is so affectionate once the camera is off."
What caught even more attention was their future direction. The two announced that they would release self-edited dating videos they have filmed so far, stating, "We will show you our relationship exactly as it is in daily life." At the end of the video, they teased that they would "show you all our chaotic daily lives," making it clear that they will launch full-scale couple content through YouTube.
This is a choice that goes one step beyond simply admitting to a relationship. For celebrity or influencer couples, moving beyond merely disclosing their dating status to converting dates, trips, and daily life into content is a new style of star communication that has recently spread via YouTube and SNS. The two are essentially moving to expand their relationship itself into a content asset.
In fact, the two have continued actions that seem to be conscious of public attention immediately after their public dating announcement. In August, they drew interest regarding their first summer vacation as a public couple when footage of them spending a vacation together in Bangkok was released. In the photos Lee shared at the time, the two naturally appeared together, revealing a romantic atmosphere.
The reason their relationship is particularly interesting is that the narrative of 'Single's Inferno 3' and the real-life conclusion flowed in opposite directions. The two appeared together on 'Single's Inferno 3', which was released in December 2023, but they did not choose each other during the final selection at that time. While they formed relationships with different partners within the program, they grew closer as friends after the broadcast ended and eventually developed into lovers in reality.
At the time of their dating announcement, Yu revealed that the two had spent time quietly getting to know each other after the show. In an interview with the Korea Times, she explained that they began flirting in September of last year and officially started dating in late November. She explained that because both individuals have cautious personalities, they did not rush the relationship.
Ultimately, the connection that continued even after the show ended developed into an actual romance. On July 29, Lee and Yu directly announced their relationship through their respective SNS, stating, "We plan to nurture a beautiful love while cherishing and supporting each other." Even then, they drew attention because they decided to go public after maintaining their relationship for a considerable period under public interest.
The personal backgrounds of the two are also factors increasing public interest in this relationship. Lee, born in 1988, worked as a professional basketball player for a long time and expanded his recognition beyond sports fans to variety show viewers through 'Single's Inferno 3'. He is a person who formed a strong character in dating shows with his competitive image shown on the basketball court and his direct way of speaking.
Yu, born in 1997, was a former Miss Korea winner and subsequently expanded her field of activity as an influencer and YouTuber. While she drew attention during her appearance on 'Single's Inferno 3' with an image centered on her looks and fashion sense, she has since built an independent connection with the public based on her own channel and SNS.
The 9-year age difference is also one of the reasons their public dating became a hot topic. However, rather than highlighting the age gap, the two are communicating with the public by showing the intimate relationship and daily harmony formed between an actual couple.
In particular, YouTube couple content holds another meaning for the two. While the relationship consumed on 'Single's Inferno 3' was constructed within the grammar of variety shows, the content they will release moving forward will be something they film and edit themselves, allowing them to narrate their own relationship.
This serves as an example of how stars from dating reality shows can maintain public interest after their broadcast ends. Unlike typical participants who naturally fade from the spotlight once a program concludes, the two can create a new narrative by continuously turning their daily lives into content.
Furthermore, the two already possess a "twist" narrative as a real-life couple that was unexpected during the show. The fact that their real-life choice differed from their 'Single's Inferno 3' selection is a narrative resource that will likely continue to draw interest in their future content.
Ultimately, the move by Lee and Yu goes beyond simply "starting a public relationship." By declaring they will share their dates and daily lives, they are expanding their roles from 'Single's Inferno 3' participants to active couple content creators.
The two, who did not choose each other on screen, have become lovers in reality and are now unfolding that reality before the public. Interest is mounting to see how this second chapter of their story, which began after 'Single's Inferno' ended, will unfold.