Betrayal is a non-lethal elimination method in Yandere Simulator.
This elimination method will start the same way as befriending a rival. (Performing a task for Kokona/Osana, listening to her rooftop conversation, help her with her problem, and then asking her to meet Ayano.)
During the cutscene, the player will walk behind Kokona when her back is turned. The screen will shake and become distorted in color with the option "Eliminate" appearing next to Kokona. This option will only be available for a few seconds. If the player misses this opportunity, Kokona will only be befriended, instead of being betrayed.
When F is pressed, the screen will fade to black with Kokona screaming in shock. If the player goes down to their basement the next day, Kokona will be tied to a chair. In the future, this scene will be a cutscene instead.
During the cutscene that plays between Ayano and Osana. In it, the player decides if they should give Osana normal or drugged tea. This option will only be available for a few seconds. If the player misses this opportunity, Osana will only be befriended, instead of being betrayed.
When Q is pressed, Ayano will give Osana the drugged tea. She starts getting sleepy, and Ayano smiles at her before she falls asleep. A cutscene will then play with Osana in the basement. If the player goes down to their basement the next day, Osana will be tied to a chair.
- Its existence was first mentioned in the March 31st, 2016 Build with the Schemes menu.
- This method was implemented in the June 1st, 2016 build.