I first watched this series few years ago and it was also my first Japanese BL drama. It was and still is one of my favorite BL series and I keep thinking about it to this day.
The series is beautiful in a many different ways, it's story, visuals, soundtrack and chemistry. Even the filming set is beautiful. The actors did really great job with bringing the characters into life. The story can be seen as simple love story but it also has a pretty deep and touching aspect.
I think everyone should watch it!