Akuma Kun, Gremory and Mephisto III enter the barrier to save Shingo. But first, they'll have to confront Strophaia, an old enemy from Ichiro's past.

When Shingo — aka the first Akuma Kun — is sealed away, the father and son Mephistos set out to rescue him, while Akuma Kun takes a different approach.

While trying out the pancakes at a new neighborhood restaurant, Mephisto III and Akuma Kun remember the day they first met.

On a dark and stormy night, a ghastly looking man comes looking for Sanae. He turns out to be her husband, who's been missing for five years.

A little boy goes into the Millenarianism Research Institute saying he wants to become a demon, but Akuma Kun immediately throws him out.

After years of hard work, a long-time legislator is on the verge of becoming a Cabinet minister. But then, a threatening man pays him a visit.

After arriving in Easter Island to investigate a strange red nail, Akuma Kun and Mephisto III discover the body of a murdered young woman.

At his wit's end, a landlord breaks into the apartment of a tenant who stopped paying rent — and discovers a gruesome, seemingly impossible murder.

A famous movie director in his twilight years asks Akuma Kun and Mephisto III to find a long-lost, cursed film made by his dear friend.

Akuma Kun and Mephisto III get invited to the home of a very wealthy client, who has a disturbing request — to summon Satan for his flesh.

Hina looks after Ichika, but danger still lurks nearby. Akuma Kun further investigates the case by making another visit to the Asanagi house.

A university student asks Akuma Kun to investigate the strange deaths of two of her friends, who both died on the same exact date and time.