Twenty Five Twenty One — Season 1
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.
01 Episode 1
Feb 12, 20221h 16m★ 7.5
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.
02 Episode 2
Feb 13, 20221h 15m★ 8.7
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.
03 Episode 3
Feb 19, 20221h 11m★ 8.0
When a fortuitous opportunity presents itself, Hee-do begs her coach for extra training. An unanticipated visitor comes around hoping to see Yi-jin.
04 Episode 4
Feb 20, 20221h 15m★ 8.2
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.
05 Episode 5
Feb 26, 20221h 17m★ 8.7
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.
06 Episode 6
Feb 27, 20221h 15m★ 8.7
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.
07 Episode 7
Mar 5, 20221h 13m★ 8.7
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.
08 Episode 8
Mar 6, 20221h 13m★ 8.3
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.
09 Episode 9
Mar 12, 20221h 13m★ 9.2
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
Mar 13, 20221h 11m★ 9.0
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
Mar 19, 20221h 17m★ 8.7
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
Mar 20, 20221h 15m★ 8.7
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
Mar 26, 20221h 15m★ 8.7
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
Mar 27, 20221h 19m★ 8.7
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
Apr 2, 20221h 29m★ 8.3
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
Apr 3, 20221h 30m★ 8.3
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.