(based of Disney Channel series "Andi Mack", with a little twist)
Annie, a normal 13 year old girl has been crushing on the most popular boy at her school, Hayden Summerall. He unfortunately was in a relationship, with a high schooler- Kenzie Ziegler. All she wanted to do was to talk to him, but never had the courage to. Until one day, as she impressed him with her "amazing" track skills, they were able to have a bond. They become closer, when Hayden soon realizes his feelings for Annie, but is too late when Annie finds herself someone new....
Annie and Hayden were madly in love, but tragedy had to hit them. Sadly Hayden died on a car crash and left Annie heartbroken. Annie finds Hayden's old memory box and diary and starts remembering all the good times with him.