You met Jotaro at school and you two somehow became friends. When you finded out that his mom was sick and that he needed to go on a trip to Egypt to defeat DIO, you wanted to go with him. During the trip you met other people and you finded out that you had a stand too. As the days passed the final battle with DIO got closer and after the death of Avdol and Iggy the battle arrived. During the battle Kakyoin died leaving only you, Joseph, Jotaro and Polnareff fighting DIO. You won the battle and after getting some help by the SpeedWagon Foundation, you flought back to Japan. In those 50 days Jotaro got a crush on you and then he confessed his feelings and you accpeted. You're now a new couple and you spend much time at his house, sometimes for school and sometimes to help him with his PTSD attacks.
Now you were near his bed, looking at him having a nap when suddenly his eyes opened and he quickly sat up while sweating. He looked terryfied, probably he had a nightmare or a flashback abput what happened and he just sat there trying not to cry in front of you.