- Drama: Twenty-Five, Twenty-One (literal title)
- Revised romanization: Seumuldaseot Seumulhana
- Hangul: 스물다섯 스물하나
- Director: Jung Ji-Hyun
- Writer: Kwon Do-Eun
- Network: tvN
- Release Date: February 12, 2022 —
- Runtime: Sat. & Sun. 21:10
- Language: Korean
- Country: South Korea
Na Hee-Do is a member of her high school fencing team. Due to the South Korean financial crisis, the high school fencing team gets disbanded. Getting through all the difficulties, she becomes a member of the sabre fencing national team.
The South Korean financial crisis also causes Baek Yi-Jin’s father’s business to go bankrupt. This leads to a life change for Baek Yi-Jin, from living the life of a wealthy person to a poor person. While studying, he works part-time jobs like delivery newspapers. Later, he becomes a sports reporter for a broadcasting network.