A 25 years old homeless girl, Shiho, living in an internet cafe, runs into a blind fortune teller, who insists that they had met 25 years ago. Figuring out who that actually was, turns out to be a journey in search for her identity.

Shiratori Tatsuhiko works as a scout for Burst, a talent agency in Kabukichō, Shinjuku's red light district. In a business where money means everything Tatsuhiko finds himself in a constant struggle between rival talent scouts and the yakuza.

Inspector Totsugawa of the First Investigation Division goes to Tsuruoka in Yamagata to attend the wedding of the son of Inspector Mukai, his former colleague who now works for the Yamagata Prefectural Police. While sightseeing at Mt. Haguro after the ceremony, he notices a young woman drawing him in her sketchbook. She introduces herself as Yuka Shiraishi and says she came to draw the Dewa Sanzan. Signing the drawing of Totsugawa next to the five-story pagoda with her initial, a 'Y' in the corner, she gives it to him as a present. The next morning, the corpse of a young woman who has been stabbed is discovered in a forest in Tsuruoka. When Totsugawa, on his way back, hears that a sketchbook signed with a 'Y' was found at the scene, he follows Mukai there. However, the body is not Yuka, the woman Totsugawa had met, and while no items pointing to her identity are found, the sketchbook is the same one Yuka had the day before.

Oei, later known as Katsushika Oi, was born the third daughter of Edo’s talented painter Katsushika Hokusai and his second wife Koto. Although Oei became the wife of a town painter for a time, her love of the paintbrush more than her husband spelt disaster and she comes back home to Hokusai from the family she had married into. This is how Oei starts to help her father out in his painting of the “insurmountable high wall”. Meanwhile, Oei can only talk to the painter Ikeda Zenjiro, who is her father’s student, about her pain and worries. Zenjiro has taken Edo by storm as Keisai Eisen, the master of ukiyo-e portraying beautiful women. He visits regularly because he admires Hokusai and secretly likes Oei although their relationship is like childhood friends. Oei respects her father whose paintings fascinated her and continues to work as a painter who supports him behind the scenes. When Hokusai’s masterpiece Thirty-six Views of Mount Fuji was completed, she was also by his side.

Summoned by the black sphere, Kei and Masaru fight against extraterrestrials until Masaru grows tired of fighting and refuses to continue.