Kantarou is a folklore scholar living in the Taisho period who moonlights as an exorcist solving the problems of ghosts and demons, all with the help of Haruka, the legendary demon-eating tengu!

Haruka fails at eating a demon boy - even though that's his purpose in life. In confusion, Haruka questions his relationship with Kantarou. Haruka and Kantarou are befriended by a priest in need of assistance. Can the priest can make Haruka see the light in his dark past?

Kantarou and company are duped into exterminating youkai for a woman who turns out to be a key player in a big smuggling ring! Although they manage to escape, the main woman is still at large... and affiliated with Raikou, a fellow youkai exterminator - who is determined to kill the legendary Demon-Eating Tengu!

Kantarou's struggle against the mysterious Raikou Minamoto and his strange band continues as the even more mysterious Father Edwards returns to the fray! Facing off against possessed actresses and demons from the great beyond, Haruka and Kantarou are up to their necks in trouble, especially when Minamoto's true motives are finally revealed...

Kantarou takes on a case of finding a missing person that leads him to an ironworking village affiliated with a mysterious organization called the Toratsugumi Society - a group that is reviving the dead...

Usagi is the granddaughter of the leader of a prestigious ninja village, but she's such a klutz she's never made it out of the kiddie class. Frustrated with Usagi's lack of progress, her grandfather sends her to marry a local lord and have lots of ninja babies. But the lord has no interest in her or her childbearing potential!

After she sees her childhood friend Kame having a tryst with Ranmaru, Usagi concludes that Kame has betrayed Iga. When she confronts Kame, Ranmaru has Usagi imprisoned and Kame is seriously wounded! What are Ranmaru's plans for the two of them? And will Usagi return to Iga alive?

During their search for Mamezo, a downpour forces Usagi and Hanzo to take shelter inside a cave. Though the storm and a dark cave provide a romantic backdrop for the loving couple, something sinister interrupts them, and Hanzo gets sniped by a poisonous ninja star! Can Usagi save him in time?

Usagi and Hanzo finally return to Iga, where a wedding banquet for them awaits. Usagi couldn't be more thrilled that her dreams are coming true! Unfortunately, the arrival of Oda Nobunaga's troops puts an end to the festivities. Can the Iga ninja protect their home against such a large army?

After the devastating attack on Iga, Usagi becomes a better-skilled ninja. Even as Usagi takes solace from her friend Yuki and vows to move forward, she struggles to come to terms with her tragic losses. Meanwhile, rumor has it that Goemon is still alive in the capital! Usagi heads off to investigate, but she'll be surprised to see how much he's changed...

Usagi must decide whether she'll continue to hold on to her feelings for Hanzo or give up and marry Yuki instead. She becomes even more torn when Yuki reveals that the mysterious ninja who saved Usagi earlier may have been Hanzo himself...!