I'm writing this review for My First First Love as a whole (part 1 and 2)

This is an extremely slow-paced coming-of-age drama about five 20-somethings with crappy parents.

If you don't like slow-paced, character driven dramas, you may find this a tad boring.
I don't mind slow-paced dramas usually, but this one was on the verge of boring.
The thing that saved it for me were the supporting characters Ga-Rin and Hun who were funny, sweet and had really interesting backstories and struggles. They were so endearing.

Our main girl Song-i (played by Jung Chae-Yeon) didn't have any chemistry with neither Do-Hyun nor Tae-O.
She had a very sad backstory but I didn't feel anything for her at all. I'm actually not sure if it's because she's a bad actress or because her character is supposed to be that meek and bland. I wish we could at least have seen her falling in love with Tae-O and more how her feelings for Tae-O are stronger than for Do-Hyun.

Ji Soo playing our main character (Tae-O) was the reason I started watching this drama. His character is cute and Ji Soo is perfect for playing such an endearing guy.

I actually liked the more mature aspect of this drama and I also liked that this drama is about friendship and friends being there for each other in hard times and understanding each other when their families can't. I just wish it had been slightly more engaging.