Ryōma"), also known as Rainbow Samurai,[2] is a Japanese manga series written by Tetsuya Takeda and illustrated by Yū Koyama.

It is a comical and serious account mixing history and fiction of the life of the Bakumatsu period leader Sakamoto Ryōma.

The comet appears as a dragon and a horse, and Otome shouts to it: "Make the child born tonight a boy!

Otome and the second oldest sister Ei do not give up on Ryōma, and raise him more strictly.

This kind heart amazes the bullies in the neighborhood, led by a young Izo Okada.

It looks as though Ryōma will enjoy a peaceful childhood, but he soon learns about the oppression of the gōshi (郷士) by the upper class jōshi (上士) samurai.