Osana Najimi

This girl is planned as 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.

Appearance
She wears the default school uniform, as well as white kogal-style leg-warmers. She wears her orange hair in pigtails with pink and white polka-dotted scrunchies and orange eyes.

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In the now out of date intro to the game when you run into Senpai, she can be seen talking to Senpai and acting Tsundere towards him.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

Outdated Quotes
"What took you so long?"

"Geez, you always keep me waiting! You've been like this since we were little kids!"

"''Don't get the wrong idea! It's not like I WANT to walk to school with you! I only walk with you because you'd probably get lost without my help! You're hopeless!" -'' acting like a Tsundere.

"Come on...let's get to school...and try to keep up!"