According to Sohu, the "unfamiliar" relationship between Ha Nhuan Dong and Huynh Hieu Minh originated from a series of conflicts that broke out when collaborating in the idol movie "Summer Bubble" in 2009, which eventually led to the two completely cutting off contact.
Ha Nhuan Dong, in the role of producer of "Summer Bubble", initially intended to play Lac Hi himself, and his close friend Quach Pham Sieu played Au Than. However, due to the regulation that cooperative films must have mainland Chinese actors, the investor brought Huynh Hieu Minh into the crew.
Huynh Hieu Minh actively requested to take on the role of Lac Hi - a character with more screen time. Ha Nhuan Dong was forced to switch to playing Au Than and also publicly apologized to Quach Pham Sieu. This role division has sown the first seed of conflict.
After that, due to the postponement of the filming schedule of Huynh Hieu Minh's movie "Phong thanh", the film crew of "Summer Bubble" had to temporarily stop waiting for a month, estimated damage of about 2 million CNY.
Ha Nhuan Dong frankly said this was a "lightning bolt in broad daylight". Although after joining the crew, Huynh Hieu Minh increased reshoots with high intensity, the distance between the two people was difficult to erase.
In the movie, there is a scene of Au Than being beaten by Lac Hi. When rehearsing, this scene was filmed in the style of "borrowing camera angles" (playing fake). But when filming real, Huynh Hieu Minh suddenly unleashed a strong punch that hit the corner of Ha Nhuan Dong's mouth, causing him to bleed.
Barbie Hsu once hinted in a program about the authenticity of this conflict. The incident is considered the "last straw" that completely cracked the relationship between the two.

After the movie aired, the role of Au Than played by Ha Nhuan Dong was praised for his natural acting, while Huynh Hieu Minh's role of Lac Hi was criticized as "too excessive, flashy".
Huynh Hieu Minh has been absent from promotional activities many times and also posted on social networks that he "regrets not playing Au Than", making the production crew dissatisfied.
Peter Ho also publicly exclaimed: "This movie is my dream and Xu Xiyuan's dream", implicitly expressing disappointment with his co-star.
Since "Summer Bubble", the two have no longer stood on the same stage or collaborated. In 2015, at the wedding with Angelababy, Huynh Hieu Minh invited almost the entire entertainment industry but did not invite Ha Nhuan Dong.
In interviews, Ha Nhuan Dong also absolutely did not mention Huynh Hieu Minh. The two sides implicitly maintained the principle of "king not meeting king", becoming a famous "isolationist" relationship in the entertainment industry.
This year, Ha Nhuan Dong attracted attention again thanks to the role of Xiang Yu in the movie "Han Chu Legend" 14 years ago. Huynh Hieu Minh focused on changing his acting direction. The two did not have any intersection.