Leila Williams (ウィリアムズ・レイラ) is a supporting character in I’ll Become a Villainess Who Goes Down in History, voiced in Japanese by Mai Nakahara. The series' music includes "I'll Become a Villainess That Will Go Down in History Opening | Baddududu", "I'll Become a Villainess That Will Go Down in History Ending | Wacchu Ane?".
