'Twenty-Five Twenty-One' revealed the CG that was used throughout the drama impressing fans and viewers.

On April 13, tvN's 'Twenty-Five Twenty-One' released the video titled 'All the CGs from 'Twenty-Five Twenty-One' on their official social media account.

The video released on this day included scenes using CG among the scenes that appeared in 'Twenty-Five Twenty-One.' The drama uses CG to change the seasons and modern streets to the 1990s. Additionally, cherry blossoms were graphically added to bare branches, and the first snow effect was added through CG.

Although many netizens were impressed with the amazing CG work, there were some fans who were upset with the ending of the drama and expressed their resentment towards the production team.

The tvN drama 'Twenty-five Twenty-One' is a drama depicting a refreshing romance between two young people who have been deprived of their dreams in 1998. In particular, the drama was loved by viewers as it brought back the nostalgic vibe of the 90s, and viewers fell in love with the two characters, Na Hee Do and Baek Yi Jin.

However, the drama ended with the two people eventually choosing to break up and take their own paths, which made many people sad, especially because many viewers hoped that the two would end up together in a happy ending.