Roller Derby Princess

Hyunjin started roller skating but the people that were supposed to be helping her were really rude to her. They pushed and knocked her down, but then she got assigned to different trainers, they helped her properly, but were really overprotective to her. When Hyunjin saw her last trainers, they had bruises and cuts all over them. Hyunjin didn't think anything of it, she just ignored them until one day as she was changing into her outfit, she heard a scream. She peaked around the corner and saw her old trainers, getting punched and kicked by her recent trainers