
Quick answer — Ryouko Shiraishi worked on Hayate the Combat Butler!! (Theme Song Performance), Hayate the Combat Butler: Can't Take My Eyes Off You (Theme Song Performance), Senran Kagura: Ninja Flash! (Theme Song Performance).
Ryouko Shiraishi worked on Hayate the Combat Butler!! (Theme Song Performance), Hayate the Combat Butler: Can't Take My Eyes Off You (Theme Song Performance), Senran Kagura: Ninja Flash! (Theme Song Performance).