Twenty Five Twenty One Facts, FAQ & Common Questions
2022 · tvN · Status: Ended · Rated: TV-14
Frequently Asked Questions About Twenty Five Twenty One
Direct, verified answers to the most common queries regarding episodes, renewals, watch order, and streaming availability.
How many seasons and episodes does Twenty Five Twenty One have?
Twenty Five Twenty One has 1 season and 16 total episodes, spanning from its premiere on February 12, 2022 to April 3, 2022.
Is Twenty Five Twenty One renewed, ended, or canceled?
Twenty Five Twenty One has concluded its run and is officially ended.
How long does it take to binge watch Twenty Five Twenty One?
It takes 20h 24m (1224 minutes) to watch the complete run of Twenty Five Twenty One. At a standard pace of 2 hours per day, you will finish the entire series in approximately 11 days. Not realistic for a 48-hour weekend. At 20.4 total hours, watching at a healthy 2 hours per day will take approximately 11 days.
What is the highest-rated episode of Twenty Five Twenty One?
The highest-rated episode is Season 1, Episode 9 ("Episode 9"), which holds an outstanding rating of 9.2/10 based on 4 audience ratings.
Where can you stream or watch Twenty Five Twenty One?
Twenty Five Twenty One is available for streaming on Netflix, Netflix Standard with Ads. Availability may vary by regional territory, subscription tier, and digital purchase availability.
What is the official age rating for Twenty Five Twenty One?
Twenty Five Twenty One has an official content rating of TV-14.
Who are the lead actors in Twenty Five Twenty One?
The primary ensemble cast includes Kim Tae-ri as Na Hee-do (age 36), Nam Joo-hyuk as Baek Yi-jin (age 32), Bona as Ko Yu-rim (age 31), Choi Hyun-wook as Moon Ji-woong (age 24).
Ensemble Cast & Current Ages
Lead cast members, their character identities, and current ages calculated from official biographical records:
| Actor | Character | Current Age |
|---|---|---|
| Kim Tae-ri | Na Hee-do | 36 |
| Nam Joo-hyuk | Baek Yi-jin | 32 |
| Bona | Ko Yu-rim | 31 |
| Choi Hyun-wook | Moon Ji-woong | 24 |
| Lee Ju-myoung | Ji Seung-wan | 32 |
| Kim Hye-eun | Yang Chan-mi | 53 |
| Choi Myeong-bin | Kim Min-chae | 18 |
| Joo Bo-young | Lee Ye-ji | 34 |
Editorial Verification & Sources
All production facts, air dates, cast credentials, and streaming metadata for Twenty Five Twenty One are compiled from official broadcaster archives, TMDB, and Wikidata records. Last verified on September 25, 2026.