If you're not sure whether to watch this or not, just drop the hesitation and watch it. It is a feel good drama that reminds you of your highschool love. No unnecessary drama or misunderstandings that frustrates you, just simple and sweet story that makes you smile. The leads did a great job to portray their character very well and although the story doesn't only focus on romance, you'll still love it. Also the unexepected friendship is the drama is heartwarming.
And Rest in peace Miura Haruma (Kazehaya). You did well. I hope you are at peace wherever you are.