The Protagonist Is Frightened by the System at the Beginning

It's the system again for ٩(๑^o^๑)۶! However, the way this system appears is a bit special, and it actually scares the protagonist! In an old-fashioned residential building, the protagonist is huddled in a corner of the room. The window is not closed. When the wind blows, the protagonist gets cold and feels the urge to urinate. It is already late in the bathroom. The protagonist gets up in the corridor outside to close the window. Suddenly, there is a cold feeling behind him and the protagonist turns around...