How many movies have Jirō Ishikawa and Sayuki Nishino collaborated on?

They have worked on 1 movie together! Their first movie together was 爆裂スロッター・一撃帝王伝　～伝説の攻略プロ～ (2004) and was their highest rated movie together. They have not worked together since 爆裂スロッター・一撃帝王伝　～伝説の攻略プロ～ (2004).