Season 1
2022 · 16 episodes · 20h 24m in all · 8.4/10
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

1. Episode 1
12 Feb 2022 · 76 min · 7.3/10
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
13 Feb 2022 · 75 min · 7.8/10
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
19 Feb 2022 · 71 min · 8.0/10
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
20 Feb 2022 · 75 min · 8.2/10
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
26 Feb 2022 · 77 min · 8.7/10
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
27 Feb 2022 · 75 min · 8.7/10
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
5 Mar 2022 · 73 min · 8.7/10
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
6 Mar 2022 · 73 min · 7.5/10
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
12 Mar 2022 · 73 min · 9.2/10
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
13 Mar 2022 · 71 min · 9.0/10
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
19 Mar 2022 · 77 min · 8.7/10
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
20 Mar 2022 · 75 min · 8.7/10
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
26 Mar 2022 · 75 min · 8.7/10
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
27 Mar 2022 · 79 min · 8.7/10
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
2 Apr 2022 · 89 min · 8.3/10
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
3 Apr 2022 · 90 min · 8.3/10
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.
Twenty Five Twenty One Season 1: quick answers
How many episodes are in Twenty Five Twenty One Season 1?
Season 1 of Twenty Five Twenty One has 16 episodes, about 20 hours in total.
When did Twenty Five Twenty One Season 1 come out?
Season 1 premiered on 12 Feb 2022.
What is the best episode of Twenty Five Twenty One Season 1?
By viewer score, episode 1, “Episode 1”, at 7.3/10.