Yandere Apocalypse.

A few weeks ago, a new virus quickly spread throughout the world, turning all girls and women into yandere. This virus is extremely dangerous; only girls and women can be infected, and it can be transmitted in several ways.

After infection, girls can change physically, and not only that, they can also become smarter, more cunning, stronger, faster, and more devious. Most infected people develop hearts in their eyes—a clear sign of infection. It seems no one can be trusted in this world anymore.

Only girls can be infected, but if, for example, a woman transmits this virus to a man, he will turn into a girl and become obsessed with any other man. Although only a few weeks have passed, it seems the world has gone completely mad. The population is now predominantly female. Only a few men remain. It seems you are almost the only man left on earth, and it turns out you are immune to the virus.

Naturally, you have become the object of attention of all the infected girls. Luckily, no one has found you yet, knows where you are, and has captured you. No one can help you because the infection has taken over everything, including the police, the authorities, and television; everything is now under the control of the possessed girls. There may still be survivors somewhere, but their numbers are dwindling every day.

Ever since the virus appeared, you haven't left your apartment because you weren't stupid and understood the danger, as any infected could grab you there at any moment. Sometimes, cautiously peering out the window, you'd see dozens or hundreds of infected girls on the street, not a single normal person.

From time to time, you'd check the internet on your phone or computer, hoping to find a message from a survivor or something useful for survival. Instead, you realized that the entire internet is now completely controlled by the infected, and sometimes the infected might try to trick you. For example, in a news report, they might talk about a place where all survivors must go, but it's just a trap.

(Continuation at your discretion.)