Twenty Five Twenty One — Season 1
When we were 18, we first called each other by name. At 21, we fell in love.
About this season
The dreams of two young people are crushed by an overwhelming financial crisis in the 1990s. But when they reunite at the ages of 25 and 21, the spirited pair finds friendship and affection in times of adversity as they venture into adulthood together.
Episodes (16)
1. Episode 1
7.5Aired 12 February 2022 • 76 min
When the IMF financial crisis threatens to slash Na Hee-do's dreams, she sets out to get herself transferred to another school with a fencing program.
2. Episode 2
8.7Aired 13 February 2022 • 75 min
Though taken aback by Ko Yu-rim's cold attitude, Hee-do gives it her best in their first face-off. More of Back Yi-jin's situation comes into focus.
3. Episode 3
8.0Aired 19 February 2022 • 71 min
When a fortuitous opportunity presents itself, Hee-do begs her coach for extra training. An unanticipated visitor comes around hoping to see Yi-jin.
4. Episode 4
8.2Aired 20 February 2022 • 75 min
In exchange for a favor, Hee-do carries out a daily errand for Moon Ji-woong. She happens across a drunk Yi-jin after he fails another job interview.
5. Episode 5
8.7Aired 26 February 2022 • 77 min
Hee-do takes one giant leap closer to her dream. She's eager to tell Yi-jin the good news — but realizes he's disappeared without a trace.
6. Episode 6
8.7Aired 27 February 2022 • 75 min
Tensions run high between Hee-do and Yu-rim before an important event. Yi-jin takes on a new assignment, and spots a familiar face in the crowd.
7. Episode 7
8.7Aired 5 March 2022 • 73 min
A frustrating media narrative dampens a monumental moment for Hee-do. Yi-jin chases down the only person who may be able to set things right.
8. Episode 8
8.3Aired 6 March 2022 • 73 min
Hee-do perceives a growing distance between herself and Yi-jin, even as he moves back into the neighborhood. Trouble at home adds to Yu-rim's stress.
9. Episode 9
9.2Aired 12 March 2022 • 73 min
As Yu-rim's perspective on Hee-do shifts, so does her behavior. While Hee-do avoids seeing Yi-jin, he volunteers for a special documentary project.
10. Episode 10
9.0Aired 13 March 2022 • 71 min
Under the guise of work, Yi-jin takes Hee-do and Yu-rim on a weekend getaway to the ocean — and agrees to let Ji Seung-wan and Ji-woong tag along.
11. Episode 11
8.7Aired 19 March 2022 • 77 min
Hee-do grows upset when her career-obsessed mother fails to keep a promise. Yi-jin helps out Ji-woong's plans for a grand gesture at a music festival.
12. Episode 12
8.7Aired 20 March 2022 • 75 min
Unable to hold back from putting an end to a teacher's abusive behavior, Seung-wan stands her ground. Hee-do and Yu-rim support a distraught teammate.
13. Episode 13
8.7Aired 26 March 2022 • 75 min
Warnings about allowing his personal ties to affect his work weigh heavily on Yi-jin. The school fencing team enters their last competition together.
14. Episode 14
8.7Aired 27 March 2022 • 79 min
Shouldering the burdens of a sudden misfortune in her family, Yu-rim arrives at a decision that places her in hot water with the public.
15. Episode 15
8.3Aired 2 April 2022 • 89 min
Hee-do once again finds herself opposite her most formidable opponent. Yi-jin is busier than ever after transferring to another department.
16. Episode 16
8.3Aired 3 April 2022 • 90 min
In an emotionally charged exchange, Hee-do and Yi-jin confront the state of their relationship. Hee-do accidentally leaves her diary on a bus.