Board Thread:Questions and Answers/@comment-25559267-20150907210756/@comment-24098543-20160515012147

Eclipse-Magician wrote:

Trivia-chan wrote: How about, because it's never explained in game that she is the correct identity of Osana Najimi, Yandere-chan doesn't know that she's the real rival?

All of the rainbow 12 and the 2 easter egg girls are the ones Yandere-chan has narrowed the suspect list down to... Yandere-chan could kill everyone possible and she'll still get heartbroken. Osana's AI isn't implemented, so she can't be interacted with. Not just Osana's AI, but also herself.