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.
Young Lord Takenaka stands to succeed his father until a series of violent actions lead his retainers to think that he has gone mad with blood-lust. Never offering any explanation, he continues his seemingly unprovoked attacks until he is sent away from his domain.
Misawa Ihei (Nagato) is traveling with his wife Tae (Iwashita Shima) who abhors the practice of sword fighting for prize money. Tae is the daughter of the clan's chief counselor who married the low-ranking Ihei to avoid becoming the clan lord's mistress. Into the mix comes Oba Gunjuro (Tetsurō Tamba), a mysterious ronin who will do anything for money. This leads to a fitting climax as the forces of hate and love converge while the couple attempt to break through the border!
대를 잇고자 아버지는 무남독녀 미치코를 보잘것없는 배경의 대학교수 타다오와 결혼시키고, 그를 데릴사위로 들인다. 전쟁에 휩쓸려 시간은 흐르고, 미치코는 선친의 유지를 받들며 가문을 지키려 한다. 그런데 이미 아내와도 소원해진 타다오는 학생들과도 거침없이 육체관계를 맺고, 아내의 친척 토미코와도 정분이 난다. 한편, 미치코의 사촌 츠토무가 귀향하는데, 미치코는 츠토무를 향한 감정을 억누르고, 그가 보내는 사랑을 부정한다.
