Souami, also known as Shinsou, was a watercolor painter during the Muromachi period, and served the 8th shogun of the [Ashikaga shogunate]]. In the present, a space shuttle carrying Japanese astronaut Sekine-Jun is about to be launched and he recalls the time years ago when he and Fujita studied art at college. Although Sekine was skilled with watercolors and had to manage the family art gallery, his dream was to be an astronomer. He asked Fujita for funding, and promised to create a painting for him. At the same time, Fujita is coerced into guiding the international movie director, Basso, around Kyoto. Basso is unimpressed with Japanese culture until Fujita takes him to see a six-panel ink painting across folding screens by Shinsou. Meanwhile in space, Sekine uses freeze-dried coffee dissolved in water to create a unique Wabi-sabi painting for Fujita, who is not going to sell it.
日本人宇宙飛行士・関根潤を乗せたスペースシャトルが、今まさに打ち上げられようとしていた。コクピット内の関根の脳裏には、学生時代のフジタとの思い出がよぎっていた。
美術大学の同級生だったフジタと関根。フジタも認めるほどの水彩画の腕を持つ関根だったが、卒業後は家業の画廊を継ぐのだという。そんな関根は、実は天文学者になりたかったという夢をフジタに語る。そして、後にフジタとある約束を交わすことに。
関根が宇宙に飛び立った頃、フジタは三田村の代役で、世界的映画監督・バッソーに京都を案内することになったが…。
