Tomoka "Tomo" Shiina
About
In middle school she was in track and field, but decided to quit in high school.
Kyousuke convinced her to follow her heart and join track and field.
She didn't want to join track and field because in middle school the guy she had a crush on said she had thick legs.
In the world where Kyousuke doesn't save her, she dies from getting run over by a car.