Based on the manga by Crimson.
The Devil’s Smartphone… A magial device that lets you take a picture of a woman and control her to your heart’s content.
Up and coming idol Amou Maria notices that her partner, Yua, is feeling out of it. Yua says that she’s doing fine, but Maria follows her suspicions and goes looking for Yua after one of their concerts. Maria searches backstage for Yua and sees her getting raped! Maria kicks the rapist hard, and he beats a hasty retreat… but not before pulling out a smartphone and taking Maria’s picture…