Dojjibôru no shinri Code 01: Densetsu no reddo burumâ (2016)

Mari was a victim of school bullying. One day, a beautiful girl named Ray stands in front of her and she helps Mari to punish her tormentors. No longer want to be dependent on the help of others Mari, decides to become stronger and to do so, she begins to train dodgeball. Soon, the girl has the opportunity to confront her torturers on the field and learn about the true motives of her former savior.