When the roles of Lam (Quynh Kool) and My Anh (Phuong Oanh) expressed their affection, closeness, and attachment to each other in "The Wind Rings the Blue Sky", the audience widely shared the scene where Quynh (Phuong Oanh) once slapped Quynh Kool's character Dao to "break the curse" in the movie "Quynh Bup Be".
Quynh Bup Be aired in 2018 and created a rare fever. The film takes a rare theme about the lives of village girls playing at Thien Thai Cave. The film was praised for its authenticity and dedicated acting by the cast. "Quynh Bup Be" helped the names of Phuong Oanh and Doan Quoc Dam shine.
In the film, Phuong Oanh plays Quynh, who has a complicated love relationship with Canh - a protection at Thien Thai Cave. The performances of both Phuong Oanh and Doan Quoc Dam in "Quynh Bup Be" both received compliments from the audience and experts. Phuong Oanh plays Quynh full of emotions, both tragic and yet exuding strength, escaping from fate. While the role of Canh made Doan Quoc Dam a "handsome guy" on the screen. His scenes were widely shared. Doan Quoc Dam's masculine, strong, and tense acting style helps Canh become a strong mark in his career.


Quynh Kool also matured when playing Dao - Lan's selfish younger sister of "Cave". Dao had a clash with Quynh, and was slapped by Quynh "in a standing ovation" during the conflict dialogue.
After many years, Doan Quoc Dam - Phuong Oanh reunited for the third time as a couple. They played a couple on the left in The quiet Abyss, a couple who could not come together in Quynh Bup Be and this time, with The Wind Across the Blue Sky, Doan Quoc Dam Phuong Oanh played a couple in a stormy marriage.
Phuong Oanh is praised for her increasingly mature acting, her emotional maturity, and her ability to adjust the stage more slowly. According to co-star To Dung, "Phuong Oanh is professional and very diligent and trying. After each meeting again, I see the maturity and maturity in Phuong Oanh's acting very clearly".
Meanwhile, Doan Quoc Dam was involved in many controversies from his cheesy appearance, to his "ugly" bathing scene, or his awkward interaction with his wife. Most recently, the actor was criticized for being old when playing a student (the character Dang Than Thanh Nam). The audience thought that, with Doan Quoc Dam's appearance, the film crew should not let him play the role of a student.


Quynh Kool also got into controversy because of her strange face, lack of breakthrough acting, and even "failed to interact" with an emotional co-star like To Dung. Quynh Kool's experienced dialogue and expressions also make Lam's role not highly appreciated, along with Toan's acting.
Phuong Oanh's full name is Do Phuong Oanh, born in 1989, originating from a modeling career, and has had a long journey with cinema. Doan Quoc Dam was born in 1988, he was once praised for his efforts in transforming and investing in each role. The audience's reaction to Doan Quoc Dam in "The Wind Across the Blue Sky" is rare.
Quynh Kool's real name is Nguyen Thi Quynh, born in 1995, originating from web dramas. In recent years, Quynh Kool has participated in many prime-time TV series projects, continuously on air.