Sakuya unexpectedly lost his mother. Before opting to die on her own terms, she left a mystery message indicating that she wanted to confide in him about something very significant. Why did someone who appeared so joyful, like his mother, choose to die...? Sakuya approached Japan's most advanced AI (Artificial Intelligence) technology business and requested that they "Create His Mother" in order to comprehend his mother's genuine thoughts. Even though he merely wanted to know what his mother was thinking, Sakuya progressively lost his heart and dignity.