Tran Thanh and Ninh Duong Lan Ngoc are close brothers in Vietnamese showbiz. The two marked their first collaboration in 2019, in the movie "Cua lai vo bau".
Transforming into a couple in the movie, the two have good harmony in acting. Even, Tran Thanh's character Trong Thoai has a sweet kissing scene with Nha Linh (Lan Ngoc).

Tran Thanh once affirmed that Lan Ngoc is the female lead he wants to play most in "Cua lai vo bau". After its release, the film brought about resounding success with record revenue at that time, marking the love of cooperation between the brothers in showbiz.
Right in 2019, Tran Thanh had the opportunity to meet Lan Ngoc again as a member of the Running Man season 1 program.
While Tran Thanh is known as a "monster villain", becoming the "soul" of the program thanks to his ingenuity and humor, Lan Ngoc impressed with her dedication and willingness to play in all situations. The harmonious coordination of the two was once again loved and enthusiastically received by the public.

Tran Thanh is absent from season 2 due to his own schedule. But in season 3 of Running Man, the couple Tran Thanh - Lan Ngoc once again delighted the audience with their "funny" confrontations, contributing significantly to creating the special attraction of the program.
Behind the lens, Tran Thanh and Lan Ngoc maintain a sincere friendship and mutual respect. Tran Thanh has repeatedly given "winged" words to his juniors, affirming that Lan Ngoc is an artist with competence, professionalism and positive energy. Conversely, Lan Ngoc always expresses admiration for her senior for her leadership ability and dedication to the profession.

For many years, their relationship has also faced false rumors many times. In 2019, Lan Ngoc once spoke out to deny rumors of having feelings for her senior. Not only that, later, Hari Won also had a clever way to respond to protect her husband Tran Thanh's friendship with Ninh Duong Lan Ngoc.
Because of their close relationship, in Running Man season 3, Tran Thanh and Lan Ngoc did not hesitate to rush into fighting in strong sports games. As a result, besides the endless laughter in each episode broadcast, Lan Ngoc was once injured by Tran Thanh. Even, Tran Thanh was condemned by his junior fans for treating Lan Ngoc too harshly in the program.

Despite being injured and having to sit in a wheelchair for a while, Lan Ngoc still spoke up, saying that it was a career risk. She affirmed that she did not blame Tran Thanh and still maintained a good relationship with her senior.
More than colleagues, Tran Thanh and Lan Ngoc have friendship and brotherhood that makes many people admire in Vietnamese showbiz. After Running Man season 3, audiences hope to see the reunion of both on screen or in the next projects and television programs.