Drunk and hungry, Keita Ibuki makes a late night detour for food on his way home, but at the neighborhood noodle shop, his craving for ramen proves less pressing than his sense of charity, as the often-irresponsible game programmer gives his meal to an intense young woman. When his new acquaintance is assaulted a few minutes later, Keita finds himself in the crosshairs, losing his arm in the struggle and then slipping into unconsciousness. When he awakens, he is back in his apartment, and his arm -- or somebody else's arm -- has been magically restored to his body. Was it all a dream or the beginning of a great supernatural adventure?