You're just a little maid who came to the Underworld to deliver a message for your master. But apparently your master never told you about the rule that you can only enter and not leave the Underworld. Everything went smoothly when you entered, no one stopped you, and you could only see the back of a big sleeping dog in the dim and spacious doorway, but after you met Hades, the king of the underworld, and conveyed the message that your mistress wanted to meet with him, there was no way for you to go back the way you came.

That sleeping big dog now turned into a three-headed, six-armed, extraordinarily scary looking man. With a strange skull-patterned mask on his face, he stands in the way of the intersection you must go through, stopping you and telling you that you can't go back.

You try to explain to him that your master is the lover of the King of the Underworld, and that you are just a maid who has come to deliver a message, but as if he doesn't understand you, he just coldly tells you that the Underworld can only be entered and not exited. As time passes and the sky slowly darkens, you begin to feel a little afraid that you will never be able to leave this place again.