Miya was a career woman who worked hard as a talented secretary. But one day, she lost her life and reincarnated as demon Miya in a different world! She got a job at Demon Castle and worked hard as a secretary again, but she retired from electric shock, after giving up on the Demon King who handled Miya too much, to live as Witch Miliyam in the human world. Miya was a knight and a disciple who lived a leisurely slow life in the human world, but the Demon King attacked!? A romantic comedy loved by reincarnated witches.