"It's the same as it was with Kinzo. Beatrice doesn't exist. This is a fake illusion of a witch that Natsuhi created, since she believes she was borrowing a witch's power when she thought up a brilliant plan to overcome hardship. It only looks like they're drinking together because Lambdadelta, who's the Game Master and ~ib~the one telling the story~ib~, interpreted it that way."