Amazon Japan

Koichi and Atsumi are lovers who have known each other all their lives. A year ago, however, a suicide attempt by Atsumi left her in a coma. Through 'sensing', a type of neurosurgical procedure allowing contact with the intentional aspect of a comatose patient's mind, Koishi tries to find out why Atsumi tried to kill herself, and to bring her back to consciousness. He enters her subconscious, and is told to find a picture of a plesiosaur she drew when she was a child. It turns out that a childhood incident buried in their past will bring their minds together.

Teacher Kawashima Haru takes a position on a remote island off the coast of Hokkaido, where she takes charge of six students. However, she is later forced to leave after an accident occurs. 20 years later, Haru learns that one of her former students has committed a crime, and eventually returns to the island once more.

Upon reaching the train station to death, a dejected soul is informed that he is "lucky" and will have another chance at life. He is placed in the body of a 14-year-old boy named Makoto Kobayashi, who just died, and needs to figure out the cause of his death.