Board Thread:General Discussion/@comment-27229742-20151020041356/@comment-24908808-20151112060934

Actually, I think the Journalist's daughter is the Yandere rival. Think about it: he mentions her arriving home with bloodied hands, which is something that points to someone violent. He neglects her, which may ruin her mind at an early age. And he is said to appear at the end, so why not at the end where his daughter dies?

If the neglecting is not what turns the final rival yandere, then it might be hereditary. Yandere-chan is a yandere, as of her mother and her grandmother. It might not be farfetched that the daughter is a yandere as well. After all, some also call the Journalist's wife as a yandere before she died.