Story: Story is really simple and is same as most of the school dramas. The leads are in same school, they become bench partners, they start helping eachother, a friendship is built between them, the friendship later turns into romantic feeling.

Character: FL: She is really funny, cute, always ready to help others, cares deeply about people around her. Is has a very strong bond with the ML
ML: As FL, he is also really funny, especially when he makes fun of her, is a really good friend specially to the FL, is a good son to his father and cares for people around him
SML: He is a really good guy but is very dense and sometimes he becomes frustrating.
SFL:She is really beautiful and simple girl, she doesn't turn into a bad person or anything when the guy she likes starts liking the FL. She becomes good friends with both the leads and they help her a lot.
Best friends of FL: These two are hilarious when they are with the FL, they also have funny moments with the ML too. They are good friends and have eachother's back.
FL's Parents: They are loving, supporting and really funny parents. They have a good relationship with the FL and they also treat other people kindly.
ML's father: He is a good guy doing everything to make his son happy, he is a great father and don't want to burden the ML. He has a lot of funny and emotional scenes with the ML.

Acting: FL actor: I have seen her in few other dramas and one of them was school drama. She has improved a lot, her her acting is really good, her timing for comedy and emotional scenes are really great.
ML actor: First time watching this guy and he just blew my mind, he acted really well as a 17yr old, had a great comedic timing, really good in doing emotional scenes and has a great chemistry with the FL.

Likes: There are so many things to like her. The best thing is the chemistry and the friendship between the two leads. They started as someone who don't like eachother to later becoming best friends. They were not bestfriends for name sake only but they were always there for eachother, always help eachother whatever the problem was. Other great thing was the friendship between their group, like there is a scene where they all hugged the ML or how they helped the FL or the SFL, how they gave eachother support and many such make you smile moments.

Dislikes: There are very few things that I disliked. The SML got too much of screentime in the middle and also with the FL for certain episode, his character was kind of boring. There are many scenes that are not shown in the episodes which is are actually important. The ending was kind of rushed, they just took one episode to complete it, it would have been better if they were few more episodes to know what happens next and what happened in the last four years.

Overall: This is a great drama, you will laugh, cry, smile, frustrate, get angry but in the end you will enjoy this.

Note: The lead couple are really funny and cute together.
My rating as casual viewer: 9.5
Rating as critique:9.5