I loved the series. This is the first time I am actually writing a review for anything on this site. But when I finished watching this, it filled me with so much joy that I had to write one.

Story
It is about first love, which is kind of obvious from the title. But there are multiple plotlines covering this theme. It is about the young Yae and Himarumichi falling in love but also in recent times about Tsuzuru and Uta. I loved that the name of every episode ties in with the general theme of that episode and they show it visually. The cinematography, story and soundtrack are a great blend. There are nostalgic times and there are also moments about youth finding their path. It is not the most original story out there and is full of cliches. But I really enjoyed watching it and it made me smile.

Acting
I was originally interested in this series because of Satoh Takeru. I love watching him and I think he generally has good taste in choosing scripts. This one didn't disappoint either. I loved the whole cast. The main couple was utterly fabulous but their younger versions were the surprise factor for me. They were really good as well. The actor playing Tsuzru did an amazing job of balancing the young broodiness without turning out to be a jerk.

Soundtrack
The series is based on two songs which they used pretty well throughout as well. They have made me fall in love with the 'First love' song. I am definitely going to be listening to it on loop for sometime now. The other songs and background score were also pretty seamless and fit the scenes well.

Overall
Loved it and will definitely rewatch at a later date.