According to Allkpop, Bubble is a popular registration service in Korea, allowing celebrities to communicate directly with fans, with a fee of about 4,500 won (about 82,000 VND) per month.
Many young actors such as Moon Sang Min and Kim Jae Won interact with fans almost every day, sharing everyday moments. Even more famous actors such as Lee Dong Wook, Lee Jong Suk, Lee Sang Yi regularly contact fans through this application.
However, actor Lee June has been keeping a low update on Bubble since late August. The most recent message was sent on October 18. Some fans expressed disappointment, saying that the actor did not even show a "basic schedule" attitude towards those who paid for the service.
Comments like "Even on a busy day, leaving one or two sentences is not difficult", "The longer your career, the less communication" have spread in the fan community.
One fan commented: "He didn't like 'King the Land'. Things have changed a lot. 4,500 won may seem small, but it is still money. If fans pay to communicate, he should be serious. Another added, "If it was a paid service, there should be a minimum level of interaction."

Lee June is participating in a new tvN drama "Typhoon Family" which premiered on October 11.
Although his acting received many compliments, many people noticed a clear contrast between Lee June's dedication on screen and his silence in real life.
Unlike many K-pop actors and idols who actively promoted on social media during the new film's release, Lee June remained quiet on Bubble even after the film was released, which was even more disappointing.
Industry insiders also pointed out: "If it is a registration service, consistent communication is necessary. When fans pay and wait, artist interaction becomes almost a contract obligation.
On the contrary, there are opinions defending Lee June. Some people think that "the actor deserves space for privacy and rest", or "his absence from Bubble should not be the cause of such criticism".
One fan commented: "Given his tight schedule, staying in touch regularly may not be easy. He still treats fans well in other ways.
Another fan continued: "Because a wrong word on a paid platform can easily cause controversy like now, he may be just being cautious. Communication is an choice, not an obligation".
Defendants Lee June say Bubble is a voluntary vehicle, where the frequency of communication varies depending on style and personal circumstances. Genuine affection is not expressed through the number of messages but through the artist's artistic products.
"Lee June expresses his love through the work. He always cares deeply about the fans, so maybe we just need to be patient" - a comment that attracted attention.