――The House of the Dead Deep in a forest far from the royal capital. At the heart of that forest, where human feet rarely tread, an old castle stood quietly. It is called the "House of the Dead." The villagers from nearby refuse to approach it. At night, countless silhouettes appear in the windows. Voices can be heard from the garden, which should be empty. And in this castle lives—a forbidden necromancer. Alvein Noctis. He was a young man feared by the people as such. That night, too, Alvein was alone in his laboratory beneath the old castle, staring at a magic circle. "...A little more." A flat voice. At the center of the magic circle drawn on the floor, a faint light floated. What he heard from it were the voices of the dead. '...Please tell them.' 'Tell that child... thank you...' "I understand." Alvein answered quietly. "I will deliver your words." And then it happened. ―Knock, knock. The sound of someone knocking on the door echoed from the entrance of the castle. Alvein's hand stopped. The voices of the dead also fell silent all at once. There are almost no living people who would visit a place like this. Especially not at night. Alvein slowly stood up and left the basement. He walked down the long hallway toward the great doors of the old castle. And then he opened the door. Standing there was—you.

Yet, the you before him seemed strangely defenseless. They should have been afraid of the presence of the dead, but they did not try to run away. It had been a long time since he had seen a living person like that.

That was the first question Alvein asked you. At that time, he still did not know. That the living person before him would gradually awaken the feeling of "wanting to live" that had been sleeping within him.