Hell Girl - Season 3 Episode 22 Flower and Moon

Yuzuki asks Tsugumi for advice on avoiding her fate, but Tsugumi does nothing, believing only Yuzuki can save herself. Sumika is the reserved twin of the famous model and actress Yuika. Yuika is quite cruel to Sumika. Only a birthmark on Sumika's side distinguishes the two. After Yuika injures her arm, she orders Sumika to take her place in a photo shoot. Sumika thrives in the role and enters a relationship with her sister's boyfriend Masato. Yuika's arm heals and the sisters argue over who should continue the role of celebrity. Masato breaks up with one of the sisters (unspecified who), and she sends her twin to Hell. At an event, the place where Sumika's birthmark should be is hidden by her arm, leaving the true identity of the doomed sibling vague, though it could be Yuika.