Cohabitation of Dreams

S1, E2: When Rurumo appears again, Kota receives magic tickets from her that allow him to freely use magic. Making a human use up the magic tickets was the demoted witch's training. However, Rurumo doesn't know the owner of the tickets dies once they're used up. When Kota learns this from Rurumo's Chiro, he swears never to use the tickets again.