Quick answer — Shizuka Itou worked on D-Frag! (Theme Song Performance), High School DxD NEW (Theme Song Performance), Hayate no Gotoku!!: Atsu ga Natsuize - Mizugi-hen! (Theme Song Performance) and 5 more anime.
Shizuka Itou worked on D-Frag! (Theme Song Performance), High School DxD NEW (Theme Song Performance), Hayate no Gotoku!!: Atsu ga Natsuize - Mizugi-hen! (Theme Song Performance), SHIROBAKO: Gekichuugeki Animation (Theme Song Performance), Negima! (Theme Song Performance), Majikoi: Oh! Samurai Girls (Theme Song Performance), Softenni (Theme Song Performance), Dog & Scissors (Theme Song Performance).
