Love, despair, depression all the same

This is a story based off Zenitsu and Nekuko. But it's not exactly the same. It's meant to be about them in high school. Once it hit Nezuko she had fallen in love with Zenitsu triggered her and now shes on a rampage. She is now a yandere demon seeking out his love and will kill anyone who is in her way. But can she kill her rivals in a week? Natoki: Only know for a wealthy family Taiku: Poplar but depressed volleyball player Norojiu: Only famous for being a model who isn't fake Kashi: Most lucky person ever Hannachi: A petite girl who has mental issue's and want you to be her slave Madiora: A girl who wants him to be her owner and "discipline" her. Eliminating some of them might be easy but Norojiu is know for despair and death. Nothing makes her happier then watching people burn alive in a fire.