The time is 2017, and it has been ten years since Girls' Generation.

The members are focused on solo activities and have not released an album as a group for two years. On the occasion of the 10th anniversary, Taeyeon submitted an application to the company for the 10th anniversary album after asking the members for their opinions, but the company repeatedly delayed it for various reasons. Jessica opened a trendy store, but was on the verge of closure due to poor management. Sunny has been a radio DJ for two years, and is bored with the DJ life, with a bottleneck in his work and a forced marriage at home. Tiffany couldn't bear Nikun's third split, and resolutely proposed to break up, and has been a homemaid in the United States for four months. After experiencing ups and downs in his relationship, Hyoyeon closes his heart and is keen to travel around the world on days when he has no agenda......

This year's Hallyu stars have completely changed.