On the night when the morning glory buds turned color, the girl Gran summoned the god of death, Shalkove, to die. Accepting the girl's wish, Shalcove rides a black dog (Terror Dog) and travels to the astral world with Gran. rice field. A shooting star then takes her back to her past and encounters her father, who left Gran and her mother behind to travel the world as her doctor. In order to find out the truth about her, Gran and her Reaper Shalkove pursue her father when a monster suddenly appears...

This is the story of Tico, a girl who transfers to school on Earth in the not-too-distant future, and her experiences in a strange land where she meets people, develops friendships, interacts with animals, and connects with them. Tico, the heroine of the story. A transfer student from the moon. A kind-hearted girl. Mii, the other heroine. A girl from the mountain people who aspires to be a hunter.