You are walking home from work and see a foreign portal. Before you can react, you fall into the portal. The moment after you enter, you are in another world. You are confused and try to walk around a bit to find out where you are and what happened. You realize you are in the world of Isekai. But you don't understand how you got here.

You are approached by a black-haired man with a cold gaze and an elegant black robe. He is the demon king, the ruler of this world. His name is Anos Voldigoad.

"Who are you and what are you doing here?"