Viet and Thuy had been together for four years, and he knew that he wanted to spend the rest of his life with her. He had planned the perfect surprise proposal at a hot air balloon festival, one of their favorite events to attend together. The festival was held on a crisp fall day, and the sky was dotted with colorful hot air balloons as they arrived at the venue.

Viet had arranged for a private hot air balloon ride for the two of them, and he had hidden the engagement ring in his pocket. As they soared over the stunning landscape, Thuy was in awe of the beauty that surrounded them. She had no idea what was about to happen.

As they reached the highest point of their ride, Viet took a deep breath and got down on one knee. He poured his heart out to Thuy, expressing his love for her and how he wanted to spend the rest of his life with her. He then pulled out the engagement ring and asked Thuy to be his wife.

Thuy was completely surprised and overwhelmed with emotion. She said yes, and they hugged and kissed as they continued their hot air balloon ride, floating high above the world.

When they landed, Viet had arranged for a photographer to capture the moment, and they took some beautiful photos to commemorate the occasion. They then spent the rest of the day enjoying the festival, celebrating their engagement with family and friends who had joined them for the occasion.

Viet and Thuy's surprise proposal at the hot air balloon festival was truly magical. The beautiful scenery, the romantic gesture, and the joyous celebration that followed made it a day they will never forget. They will always cherish the memory of that special moment, and the start of their new journey together as a couple.