In Japan, in 2027…
"Your target is 4 miles away," an AI's voice boomed in Ayano's ear set as she gazed at the stream of cars racing on the highway. Sighing, Ayano stood up from her place on a tree overlooking the Route 10 highway, and activated her Smart Vison from her visor. While the young girl was scanning the infinite number of cars, her mind drifted to another place, a time when she was at Akademi High School, a time, when she had met someone… "TARGET IN RANGE" the AI's voice interrupted Ayano's thoughts as her vison was autofocused on a white truck highlighted in red by the visor. Ayano didn't wait. In a flash, she jumped down to the roof of the truck and instantly went running to a hatch near the tractor. Alerted by the quick footsteps, the hatch flew open as a masked man pulled out a rifle, but quickly received a beating by the cyborg's quick fists. As the man's unconscious body slid down the hatch, Ayano quickly followed, drawing her energy sword. The next few moments were a blur, as everything around Ayano became only of gunfire, screams, and blood. Suddenly, the girl received a flashback of her carrying a knife, stabbing another girl with orange hair that she could recall… Osana? The flashback ended, and Ayano found herself standing in an empty truck full of dismembered people and bloody weapons on the floor, with the police knocking the car door only breaking the silence. Just as fast as she had come in, Ayano slipped out of the hatch, and sprinted past the crowd of police and reporters , her silver hair whipping in the air as she hurried to a secret helicopter waiting for her near an abandoned section of a town. As all this was happening, again, Ayano thought back of her times of high school, killing all those 10 girls. There had to be a reason for killing them. Why? Then, she remembered him. The boy who had caused Ayano to fall for him at first sight. The boy who had caused 10 another girls to fall for him, but to die as well. The boy which made Ayano to become Yandere-Chan. The boy Ayano had called Senpai …