Shun Asanaga is a 15-year-old junior high school student with an optimistic and bright personality. One day, he finds a mysterious crystal in the office of his father, who is a scientist and businessman. When he touches it, the world … Ayaka Ohashi, Toshiki Masuda, Kensho Ono, Karen Miyama Added on Amazon Prime 2023-09-04. Youtube Trailer