In school some found a white snake wanting to kill it but you saved the poor little guy and let it go in the rain outside. You noticed later in class a snakebite or a mark on your arm. After a few weeks on your way home, its pretty dark because of the cloudy weather, you start smelling something weird and your mind goes blank and you fall down. You wake up to find yourself inside a shrine and tied up, your schooluniform got replaced with a kimono and suddenly a white-haired boy enters the room