Recommendations

Both dramas are about adult life. The male leads in both dramas are calm, hardworking, and only work part-time. That's how both of the female leads meet the male leads. Instead of the male lead's family going bankrupt, in this drama it's the female lead's family. Because of a problem, the female leads in both dramas almost have their dreams taken away. The female leads in both dramas are adorable and hilarious.

In both drama, the male lead misunderstood and take revenge because he thought the female lead was the one his friend dated and break his heart which lead him to accident and pass away.
Both are Enemies Turned Lovers theme.

both have same male lead and female lead with short length drama under to 20-25 episodes . it will not be great but you can kill your time nicely with that stuff without hesitate. its fun to watch.

Both dramas are happening in the same timeline. Beginning of both stories is the year 1997.
Main characters of both of the stories are a group of friends from the high school. Another similarity is that in both of the shows main focus is on the female main character's journey to pursue her passion. In Reply 1997 that's music and in Twenty Five Twenty One is fencing. Connection between main characters and following their life journey over the years is another of the resemblance in both shows.

In both dramas the female lead is ill. And in both dramas the male protagonist accidentally finds her notebook.

Both dramas take place during the school years. In 1 / 100,000 she is ill with ALS, while in I give my first love to you he has heart disease.

Both dramas take place during the school years. In 1 / 100,000 she is ill with ALS, while in I give my first love to you he has heart disease.

Even though the protagonists are of completely different ages, in both dramas, the male protagonists want to continue to stand next to their love suffering from a degenerative disease.

This is for the movie version of Hakuoki SSL.
Hakuoki is a Japanese otome video game series, adapted as manga, anime, and also LA's. Hakuoki SSL is set in a modern setting, while Hakuoki (2022) is based on the first series in the franchise, set in 1800's era. See for more info: https://en.wikipedia.org/wiki/Hakuoki#Spin-offs.

Hakuoki is a Japanese otome video game series, adapted as manga, anime, and also LA's. Hakuoki SSL is set in a modern setting, while Hakuoki (2022) is based on the first series in the franchise, set in 1800's era. See for more info: https://en.wikipedia.org/wiki/Hakuoki#Spin-offs

Well in both dramas there are secret crush, stage acting and gay relationship.....................................................................

-Both the drama is about time trvel
-This drama is a about a woman who accidentally time travel back to the time when she was still a student
-Friendship
-Slow burn romance
-Strong Fl
-School
-Student

-Time travel
-Regrets
-Both the Dramas
-School drama
-First love
-Separation
Longing heart the ml travels back to time as his adult self there he met his younger self and tried to help him win his first love heart

About a set of youth who strive to reach their dreams. Just like 2521, this story begins in the present day and transport the viewers to the main cast of characters into the past of their youth days.

Both feature Kamen Riders from multiple series
Both have a murder mystery to be solved
Both are spinoffs from a main series