Go Away, Ultramarine

A story of reuniting twin sisters, who were seperated when young. Maiko, who lives in Hachijo Island, organizes a local festival. Just before the festival starts, she leaves the island to look for her sister Seiko in Tokyo.

An executive of the yakuza osako clan leaves the underworld to raise his only son, but a war between the "Kaiyama" clan brings him back.

A single mother was murdered in a room in an apartment while the news of an indiscriminate murder of women was making headlines every day. At the same time, Kazuki Saito, her son, disappears. The public speculates who could be the culprit and they even have a type, and the police are also looking for him. Meanwhile, a girl named Sayo, wanders into the woods and meets the speculated culprit with a knife. What is the fate of the girl who met the murderer?