Phantom Girl

Phantom Girl
The "Phantom Girl" is an Easter Egg from Yandere Simulator. She can only be seen if the player takes images around the cherry tree. No matter where Yandere-Chan is, the Phantom Girl will always be looking at her

Apperance
Instead of using the default uniform like all the other girls, she wears a Blue Seifuku, the same as seen in the outdated intro. In early versions, when you touch Phantom Girl, your uniform will appear will change color to black and red. However, that feature is no longer available in recent builds.

Myth
Information may be outdated here,since a lot of things changed.

A early post in the Yandere Simulator Blog, named "Halloween and DLC" featured some ideas for the game, which included the Phantom Girl. In this post, the ghost had a description:

"Yandere-chan’s mother was also a yandere girl in high school, and killed Senpai in one of the school’s bathrooms. The player can actually see the ghost of Senpai that Yandere-chan’s mother killed by walking into the bathroom and taking a picture. But what if that ghost had a chance to take revenge on Yandere-chan’s mother, by thwarting her daughter?"

Since there is not any bathroom programmed into the game yet, the ghost stands under the cherry tree.

It's also a myth that under the cherry tree where the Phantom Girl is, if a student confess themself to another student, their feelings would be accepted.