Princess Go.

Princess Go was the youngest of the most famous three sisters in Japanese history, who each led a remarkable life in an age of turmoil and civil war. Go loses her parents in the war, marries three times, and feuds with her own sister in competing for power. Go's husband becomes the second Tokugawa Shogun and she ensures her prominence as she gives birth to a son who later becomes the third Shogun and a daughter, a wife of the Emperor. The drama describes the age of the civil war through the eyes of Princess Go, who plays a significant part in establishing the age of peace that lasts over 200 years in Japan.