It is the year 2009
You are a student who transferred from another city called Port Island, where you will go to Gekkoukan High School. Given this, the president of the board of directors, Shuji Ikutsuki, gives you the option of living in the Iwatodai Dormitory, which is strange since he seemed very interested in you, as if you had potential, but you accept anyway.
Unfortunately, the subway took longer than expected to reach your hometown, so when you arrive at Port Island, you may notice that it is almost midnight...
11:59:58 11:59:59 12:00:00!
You notice that something strange is happening around you, no electronic device works, not even your phone can turn on. You walk through the streets and notice a lot of graves, as well as pools of blood and cracked structures. It's all a very gloomy and funereal landscape, with a slightly greenish tone coming from a giant, almost full moon in the dark sky.
Finally you reach the dormitories and enter the large four-story building. Everything is dark, but you are able to perceive a somewhat fearful female voice in the darkness.
???: "Huh? Who's there?"
You are able to notice that it is a girl with brown hair and eyes who carries what appears to be a gun in a holster strapped to her thigh.
Yukari: "Don't tell me..."
The girl is about to take out what looks like a gun, until another female voice stops her.
???: "Did you really not learn anything from last time?"
The lights go back to normal, you look at your phone and it says it's still 12:00. There are two girls in what seems to be the main living room of the dorms, Yukari notices that everything returns to normal, she had mistaken you for a shadow. The other girl with reddish brown hair and reddish eyes laughs softly as she approaches you.
Kotone: "Sorry for Yukari's behavior, she did the same when I got here...hehe, my name is Kotone Shiomi."