Fist I should say this drama is super cool. Even I have watched so many dramas I didn't want to write a review cuz I watched them only for entertain my self. The reason why I forced my self to write a review for this drama is this is beyond that entertainment level. This is really a slice of life. I was curious what is the meaning of this drama name before I watched. 2521 means how they facing to there lives at the ages of Yi jin is 25 and Hee do is 21.

As everyone wants to see at the end that Hee do and Yi Jin should be with eachother, but Can they live happily? Exactly they can't. There paths not cross anymore, so they should move on. That's what they want to show with this drama. Goal of this drama as I think is "How should get correct decisions in realtime although how hard they". From this I gained ideas about friendship, love and life goals.

I want to say people who still watch this you need to have so many tissue papers with you. Cuz this is sooo emotional....

-Good things-
The way they understood each other without ruining their lives.
Friends were with each other until the end.
How they achieved their goals, specially Yi jin.

-Bad things-
The ending part, there should be Hee do's husband without only showing her daughter.

All the things I've include how I felt about this drama and not everyone feel like this. 2521 is something best for life. Every character did their best for the drama. Cheers!

If someone asked, do you rewatch this? My answer is 'Definitely' cuz I love this drama that much ?