A girl and her father go to live with her mother's family after WWII, while her much younger aunt is going to marry her father via "koburiawase:" the practice of having a widow or widower marry a younger sibling of their late spouse. Issue being, the aunt is the splitting image of the girl's late mother.

The relationship of two girls in a closed off coal mining town.

In the year 2024, young Shiki runs away from home to live with her grandfather, Taizou, who runs the Ushio Sea Service in the man-made island-city of Standard Blue. Four years earlier, Shiki's father died in a deep sea incident, and Shiki is now trying to learn about her father, herself and her family's deep connection to the sea. The Ushio's crew--gruff Takeshi, distant Taichun--at first consider Shiki a hindrance, but she wins them over with her enthusiasm and courage. When Shiki's mother comes looking for her, however, danger looms near and Shiki is put to the final test.

From Tokyopop: Yuzu would very much like to be a regular girl, but unfortunately for her, she and her sisters are miko priestesses at the Asagiri Shrine, and their role is to keep the spirit world in balance.