Kanan-sama wa Akumade Choroi

The devil Kanan has been cultivating humans to eat their souls... until one of them ends up as her boyfriend.

Kanan's maid, Ami, has come to check on her and snack on all the cute humans.

After catching Kyougi with his old friend, Kanan finds the courage to ask him out on a date that goes awry.

Canaan and Kugyo-kun have successfully completed their first date. What's next? A kiss? Or...? Just when you think Canaan and Kugyo-kun's romance is going to get better and better—it doesn't progress all that much. Ami, frustrated by their slow progress, decides to play Cupid and tries every trick in the book to bring the two together (physically), such as letting him clean her ears while she rests her head on his lap and taking him swimming in a pool.

A mysterious transfer student, Jeanne, dressed in a nun's habit, arrives in Kōgai-kun's class. It turns out Jeanne is a (self-proclaimed) saint sent from heaven to protect Kōgai-kun from the demon Canaan! However, Jeanne is a bit of a clumsy and naive girl with many shortcomings... A fated battle between the demon and the saint over Kōgai-kun is about to erupt!?

One coincidence after another leads to Canaan and Kugai-kun being pressed close together in the classroom's cleaning locker. The mood becomes romantic and they almost kiss, but in the end, it ends in a near miss. The next day, Kugai-kun suddenly takes Canaan to the beach. Skipping school, they are alone together in the open sea. It's a perfect, youthful situation. Could it be that Kugai-kun intends to continue where they left off yesterday... and kiss her!? "I'm not mentally prepared yet... No, no, no!"

Summer vacation is just around the corner. To prepare for their final exams, Kugai and Nadeshiko ask Canaan to help them study. Nadeshiko is thrilled when Canaan praises her after she completes her assignments, but for some reason, she feels unsatisfied. Meanwhile, when she sees Kugai being scolded by Canaan, she feels strangely envious. Ah, so this feeling is... Nadeshiko awakens to a new fetish!? Just then, the Kogane family receives a phone call from the Zebul family in the demon world. It seems Canaan has to return to the demon world for summer vacation...

Canaan returns to her family home in the demon world with Kugiya-kun and Jeanne, who tagged along uninvited. Her father, Beelzebub, and mother, Lilim, mistakenly believe Jeanne is Canaan's girlfriend. "Such a cute girl as a girlfriend!" they exclaim, overjoyed. To clear up the misunderstanding, Canaan reintroduces Kugiya-kun as her boyfriend, but to demons, humans are nothing more than food. "I won't allow a human to be your girlfriend, Dad!!" Beelzebub seems strongly opposed to their relationship...

To get her family's approval for her relationship with Kugyo-kun, Canaan decides to participate in a stamp rally. First, she tries to get the stamp of her mother, Lilim, who has an extreme fear of men. To determine if Kugyo-kun is a suitable man for Canaan, Lilim gives her a test of courage at a haunted spot in the demon world! Will Kugyo-kun be able to protect Canaan from the horrors of the ghosts, dodge Lilim's seductive attacks, and successfully obtain the stamp?!

The mysterious beauty who suddenly appeared before Canaan and the others was Jeanne, refreshed after taking a bath and having her impurities (flabby flesh) washed away. Jeanne was accused of stealing Canaan's underwear and was about to be publicly executed. However, Jeanne had no recollection of doing so and was completely innocent. Canaan had a hunch about the culprit. It was her younger sister, Mirch, a bratty girl who had been stealing Canaan's things since they were kids.

Honey Bunny is a popular live streamer in the demon world. Her true identity is Miel, who relieves her daily stress by satisfying her need for recognition!? Miel, who adores her older sister Canaan, dislikes Kugyo-kun and vents her frustrations by complaining on her live streams. Canaan, unaware of Miel's true identity, plans a trip to the lake with Kugyo-kun in the hopes that they will become friends...

Finally, the stamps for Lilim, Mirch, and Miel are all collected, leaving only Beelzebub. The final trial that Beelzebub has imposed on them to get his stamp is—a beach volleyball match! Canaan and Gogyo-kun take on the Zebul family beach volleyball challenge. Will the two be able to overcome this trial of love?! The love story between the adorable demon and the inferior being (human) is finally reaching its climax!!