Frog Song(2005)

Walking out on her husband after discovering his infidelity, Akemi Kudo (Konatsu) finds refuge in a comic-book shop, where she meets Kyoko Ito -- a would-be manga artist. Soon the unbridled Kyoko introduces Akemi to a new world of sensual experiences, but their fragile friendship is put to the test as Akemi contemplates returning to her two-timing spouse.