Osana Najimi

This girl is planned as the first rival for Senpai's affections, she is also Senpai's childhood friend.

Since her AI is incomplete, Osana Najimi cannot be interacted with (killing, talking, etc.). Yet, she'll still confess her feelings to Senpai on Friday, resulting in the "Heartbroken" ending. During gameplay, you can find her standing underneath a cherry blossom tree near the school gates.

She is not active yet because YandereDev wants to give a different character model to make her more unique, but her character model is not compatible with all of the animators that were made for the other female skeleton that the rest of the female have. Osana can't be put into the game unless a character rigger makes a control rig for her, and an animator uses this rig to create a full set of animations for her, or YandereDev gives her the same character model and animation as all of the other female students.

The downside of giving her the same character model as all the other female students is that she will look like a clone of Yandere-chan, but with different eyes, hair, and stockings, So far YandereDev van't find anyone to get it done.

Appearance
Osana Najimi is an extremely short girl and is actually the shortest character in the game. She has ruddy cheeks in a blush, a soft smile, orange eyes, and pale skin. Her ginger hair is worn in two slightly curling pigtails. To keep her hair up, she wears ruffled pink and white polka-dotted scrunchies and a purple ribbon. She wears the default female school uniform and black shoes, although with white Kogal-style leg warmers.

Scenes
In the now out of date intro to the game when you run into Senpai, she can be seen talking to Senpai and acting Tsundere towards him.

You can see the old intro on YandereDev's YouTube channel.

She also appears in the spinoff game Yandere clicker. Her face was used for the "Imouto" option, described as "A kawaii Imouto who will stab senpai for you." However, she is not  Senpai's little sister and should not be mistaken as such.

In Yandere Simulator April 3rd update, the Photographs folder had a lot of pictures of her in different positions.

Trivia

 * Osananajimi in English means 'Childhood Friend'.
 * In the Challenges menu, there's a sillhouette of a girl playing victim, that seems to resemble Osana.Challlmenu_-_osana.jpg
 * Osana's name references her history and current relationship with Senpai.
 * She is the first official to be introduced so far during the build era.
 * She makes a small cameo in the April Fools'strailer.
 * You can buy Osana Najimi's 3D model on the Unity Asset store, and her model is named Satomi Makise.
 * Info-chan can't give you information about her.