Following the death of her father Kazuo, Momo Miyaura and her mother Ikuko travel from Tokyo to the Seto Inland Sea. Momo carries Kazuo's unfinished letter, which contains only the words "Dear Momo." The two arrive at her mother's estate in Shio Island (汐島, Shiojima) and meet their relatives Sachio and Sae Sadahama as well as Koichi, a postman and Ikuko's friend. Momo is devastated and misses Tokyo. In the attic, she opens a present containing a rare picture book about goblins and Yōkai, collected by Sachio's father. Three droplets from the sky enter Ikuko's estate and transform into yokai consisting of Kawa, Mame, and Iwa, the group's leader.
Xu-Xian, a young boy, once owned a pet snake in West Lake until his parents forced him to give her up. Years pass and during a violent storm, the snake magically transforms into the beautiful princess Bai-Niang. Bai-Niang finds Xu-Xian, but the lovers are separated by a local monk, Fa-Hai, who believes that Bai-Niang is an evil spirit. Xu-Xian's two panda pets, Panda and Mimi, try to find Xu-Xian. In the end, Bai-Niang gives up her magical powers and remains in human form to prove that her love for Xu-Xian is genuine.
This anime film tells the story of the god Susano'o (as a cute boy), whose mother Izanami has died. He is deeply hurt by the loss of his mother but his father Izanagi tells him that his mother is now in heaven. Despite Izanagi's warnings, Susano'o eventually sets off to find her. Along with his companions, Akahana (a little talking rabbit) and Titan Bō (a strong but friendly giant from the Land of Fire), Susano'o overcomes all obstacles in his long voyage. He eventually comes to the Izumo Province, where he meets Princess Kushinada, a little girl whom he becomes friends with (he also thinks that she is so beautiful that she looks like his mother). Kushinada's family tells Susano'o that their other seven daughters were sacrificed to the fearsome eight-headed serpent, the Yamata no Orochi. Susano'o is so infatuated with Kushinada that he decides to help her family protect her and slay the Orochi once and for all and he, Akahana and Bō prepare for the showdown.
A small, lone Kappa miraculously survives over 200 years into modern day Tokyo, Japan when he is found by young Koichi. "Coo" who is secretly adopted by the whole family, faces a tragic past and the present's challenge of living in a dramatically changed environment, searches with his new human friend for places not invaded by people hoping to find any remaining of his kind. When this intelligent "water sprite" draws the popular attention of the whole city upon being discovered and then confronted with his past, it forces him to take action and make an ultimate decision, in order to preserve his kind, inner peace and well being in today's harsh world.
The story begins in late 1960s Japan. A group of tanuki are threatened by a gigantic suburban development project called New Tama, in the Tama Hills on the outskirts of Tokyo. The development is cutting into their forest habitat and dividing their land. The story resumes in early 1990s Japan, during the early years of the Heisei era. With limited living space and food decreasing every year, the tanuki begin fighting among themselves for the diminishing resources, but at the urging of the matriarch Oroku ("Old Fireball"), they decide to unify to stop the development.