Osana Najimi is an upcoming rival in Yandere Simulator. She will be the first rival and used to be able to be added into the game.


Osana has orange twintails that fade to blonde at the end. The twintails are held up by pink polka-dot scrunchies. She has a pink ribbon in her hair. She has orange eyes and pink polka-dot stockings. She will most likely wear the default school uniform unless customized.


Osana and Senpai have been close friends ever since they were very young children. They have always lived next-door to each other, and have always walked to school together.

Despite their closeness, Osana is quite rude and harsh towards Senpai; she is always easily irritated and quick to anger when he is around. The reason for this behavior is because Osana has developed romantic feelings for Senpai, but she is afraid of letting him know how she truly feels about him.

She doesn't want him to know how she really feels about him, so she is mean to him at almost every opportunity. However, her true desire is to confess her feelings to him underneath the cherry tree behind the school...and if nothing stops her, that day will come very soon...


Osana is a tsundere. She is hotheaded and irritated around Senpai. She is very rude to Senpai and makes negative remarks to him at almost every opportunity.


As she is unimplemented, her routine is unknown. Since she is a rival, she will be close to Senpai and other students.



Osana Najimi is Senpai's childhood friend. Osana has a crush on Senpai and will confess to him on Friday on her week.


Osana Najimi can be matchmade with her suitor. Since both of them are unimplemented, this is unavailable.

Hanako Yamada

Osana may have been friends with Hanako. They may have played together when they were young.


  • She will be the first rival in Yandere Simulator
  • Osana will be implemented when YandereDev has enough animations, voice lines, and overall quality.
  • Osana used to be able to be added into the game by renaming the "Reserved" under Musume to "Osana Najimi". However, she will not function as a rival.


"Did you oversleep again? Ugh! You always keep me waiting! Don't get the wrong idea! It's not like, I like you or anything.. dummy." -Osana in the "Rival Introduction Video".