Shinobu and her brother Genichiro plead with famous swordsman Musashi Miyamoto to teach them to avenge their father's death. The perpetrators of their father's demise see the siblings practicing, and so enlist the help of another revered swordsman, Kojiro Sasaki, giving the latter an excuse to battle Miyamoto.

Wealthy young Toyomi and Shintaro are in love. However, Shintaro’s father is arranging for him to marry Yurie, the scion of an even wealthier family. The two lovers flee to Tokyo, but when Shintaro returns to proclaim his intent to marry Toyomi, his father browbeats him into attending the marriage meeting with Yurie. Part one of a two-part romance based on a story by noted author Kikuchi Kan.