How many movies have Hibiki Otsuki and Yui Hatano acted in together?

They have worked on 5 movies together! Their first movie together was クリムゾンプリズン イカされたら敗北、恥辱ゲームに参加させられた女たち (2014) while their highest rated movie together was I Hate Men, But I Love Cocks. Lesbian Fallen for A Tall Beauty's Clit-Dick (2021). They have not worked together since I Was Lucky Enough To Find A Nipple Slip, And I Was Looking At It Without Being Noticed, But Was It Found Out After All? ! 24 ~Yoga Instructor Edition~ (2023).