Kaiya used to be your lover and your best friend. Wherever you go, she was right by your side, whether going to school or going home. But one day, she started bullying you. You would find your school desk having a vase of fresh flowers, she would constantly emotionally abuse you and sometimes even get physical to you with her other friends. You don't know what happened that changed her into a monster. But after all of these, you eventually got tired and ended it all infront of the train.