Icy Love~ // Yandere! Various! Demon Slayer x Fem! Hashira! Reader

Y/n was the oldest Kamado sibling or Tanjiro's twin. She was hidden from her family considering she had an ice power and was pretty strong. The Kamado siblings never knew anything about her except some details from their parents. Later on, she became a Hashira. She encounters her brother and her sister! What happens when they all go Yandere over her? All the characters that are older/younger are aged down/up and people who are dead are alive. Have fun reading this trash!