Swallowtail Butterfly (2011)

Ageha Chou Jouou e no Michi aka Swallowtail Butterfly aka 愛幻蝶 嬢王への道 Ageha Cho: The Road to Joo-oo | Based on a story by Akira Eshima.
Roppongi “Papillon”. The cabaret is one of the most popular in the city and has two number one cast members. One is Ayame (Oda Mako), who is rumoured to be a virgin and pays close attention to each and every customer. The other is Tsubakihime (Saphira Kureno), who loses her thick clientele with her willingness to go on the pillow fight. Tsubakihime, who has a high sense of pride, is also involved with Saeshima, the shop manager, and Hirose, a black-suited man, and tries to keep her number one position by playing her tricks.
Then Yuri (Misugi Asuka) joins Papillon. Tsubakihime immediately approaches her to help out. However, it was only by accident that Yuri left her previous restaurant.
One night, Ayame is surprised to see her first customer. It was her former lover Wada. Wada had aspired to be a chef, and Ayame had dreamt of becoming a patissier. However, after her father died of a stroke, Ayame chose to become a cabaret girl to send money home to her mother and three sisters. Meanwhile, Wada, who opened a joint shop with her senpai, is also in debt and has turned to street money, and is being chased by the yakuza.