Adapted from the Seicho Matsumoto story "Tazutazushi". Ryohei Suzuki, a manager at a travel company, is married to his superior's daughter, but tires of their authority over his life. A chance encounter with Yukiko Hirai one rainy night brings a new romance into Ryohei's life, and he and Yukiko fall deeply in love. Yukiko, however, reveals that she has a violent husband in prison - with only a week left until his release. Ryohei, desperate to maintain his social standing, brings Yukiko to the mountains in Nagano and sets in motion an unthinkable, tragic chain of events.

A young girl named Oichi is abandoned by her mother and blinded by a lightning strike. When her guardian is killed, she learns to wield a sword from a traveling ronin. As she develops into a master swordsman, her profession becomes that of a bounty hunter. Many test her sword and many die by her skills. She travels throughout the countryside to seek her mother and her revenge.

Set during the last days of the Tokugawa (Edo) Period, Moeyo-ken tells the story of Hijikata Toshizo and the Shinsengumi. Hijikata Toshizo is a samurai eager to test his skills and sword and make his first kill. The dojo he belongs to practices the Tennen Rishin style and teaches this to farmers. Not considered real samurai by other dojo's, they receive a request for a duel by a rival dojo practicing the Kogen Itto style. Sohaku Rokusha, a teacher there, challenges them and fights with Hijikata Toshizo. The outcome of the fight creates a deadly animosity between them that lasts through the ages.