Choi Geon Hee, who is the brother of the late K-pop star and actress Sulli, has sparked new rumors about Sulli's struggles during the filming of the controversial movie Real.

His recent Instagram post has fans asking about the circumstances surrounding Sulli's role in the 2017 film, which drew fire for the way it portrayed female characters.

In his most recent update, Choi wrote a touching message: "My life, your life, all of our lives are 'Real,'" putting quotation marks around the word "real."

That led many followers to see his words as a reference to Sulli's troubled participation in the film.

As per Insight, Real was controversial when it came out for its explicit nature. Critics, such as Dispatch, argue that female actresses "had minor appearances in sex, drugs and gambling scenes."

After a nude scene from the film was leaked shortly after its premiere, Sulli fell on the receiving end of sheer viciousness.

In the wake of actress Kim Sae Ron's tragic death -- which revealed some disturbing details regarding her relationship with actor Kim Soo Hyun and his company, GOLD MEDALIST -- the film has attracted newfound interest.

One thing has led to others and even some conversations about possible links between historical facts and current controversies within the sector.

The exact meaning of Choi Geon Hee's post is not completely clear, but his interactions with his followers imply that he may be referring to lingering fallout from Sulli's experiences surrounding the production of Real — not only on the set of the film.

In response to comments encouraging him to speak more, he replied, "What happened, happened, even if viewers had my friend's back. It has happened again somehow."

Fans have extensively analyzed Choi's ominous comments, while the future of Sulli's legacy and her work in Real continues to be a controversial topic in the K-drama world.