Nurse Witch Komugi

Ungrar, the King of Viruses, has escaped from his prison cell in Vaccine World. Maya, the Goddess of Vaccine World sends Mugimaru down to Earth to find a human to accept the powers of Vaccine World and become the Magical Nurse. He finds the best (and the only willing) person for the job when he meets Komugi Nakahara. Komugi is a playful, lazy, and easily distracted (typical) teenager whose dream is to become a cosplay idol... (Anime News Network)