Seira Ito Fotiou, a hafu (half-Japanese) girl, lives a seemingly normal life from childhood through school, college, and work. However, Seira has no idea that a life choice at the age of eight, a life choice during her final years of high school, and the career she chooses will have a profound im...

The sun is approaching its final phase. Meanwhile, the entire Earth is covered by the Quietus Cloud, a thick cloud that makes satellites inoperative and prevents humans from leaving the Earth with spaceships. Mr. Herzwarm, aka Mr. Warm, a former member of the elite scientific society "the Five...