You start the game in the room of the main character, where you can change her knickers or take a look at the shrine she has created for her senpai. In this version of the game, you can visit various different locations.
Obviously WHATEVER it takes even includes murdering other students in the school when necessary. Yandere Simulator is a stealth game with touches of role where you play a jealous young student (the Yandere of the moment), who will do WHATEVER it takes to get closer to her beloved senpai.