Having learned the truth of her origins, Nephteros flees from Archdemon Bifrons. While being pursued by a chimera into Zagan’s territory, she has a fateful encounter with Angelic Knights. Meanwhile, Nephy and Zagan have finally confessed their feelings to each other, but neither of them have any idea how to act like a normal couple. After getting some much-needed advice, Zagan learns of a mysterious event know as a “date” and goes on a research trip in town.

In order to thank Zagan for building the castle's grand bath, Lilith offers to use her powers to help Zagan and Nephy enjoy a date within their dreams. But will that really work out, considering their devastatingly poor sense of imagination? Meanwhile, the hunt for Shere Khan intensifies as more Archdemons reveal themselves and the looming threat Alshiera has been fighting draws ever closer.

Having finally dealt with Shere Khan, a party is held to celebrate both the victory and Zagan’s birthday. Spirits are high all around when Gremory, who has been starved of love power due to her mission, declares the start of the Kianoides love power general meeting. Participants are dragged in, willingly or otherwise, and must recount love stories both recent and old to provide the granny with her requisite dose of sugar. Prepare for the most densely packed volume of sweetness ever to be published for this series to date!

After accepting Lilith's request for a larger bath, Zagan begins the construction of a grand bath in his castle to reward the services of his subordinates and provide a place of relaxation for Nephy and the other girls. Life in the castle is as peaceful and noisy as ever. However, Bifrons' evil schemes are advancing toward them, and the mysteries of what Alshiera has been fighting against for so long slowly begin to unravel.

Since they're already all the way out in the ocean, Zagan's group decides to go relax on a beach. Everybody changes clothes, and the men are all dazzled by the sight of the women in swimsuits. However, things take a turn when an Archangel named Michael drops by to deliver news that a sorcerer who slaughtered one of the Archdemons has marked Zagan as their next target!

The world is abuzz as centuries of hostilities between sorcerers and Angelic Knights have been brought to a screeching halt by the now-widespread knowledge of the relationship between Chastille and Barbatos—disregarding whether they admit to actually being in one. Meanwhile, Zagan begins his research into how to destroy the Sacred Swords so that he can free the seraphs sealed within them. At the same time, faced with various challenges like Marchosios’s scheming and the demons’ arrival, he plays his next hand: to begin negotiations with the oldest living Archdemon, Forneus. And who better for the job of dealing with an idiosyncratic Archdemon than the brand-new couple, Shax and Kuroka?

After getting too accustomed to the cozy life in Zagan's castle, Foll fears she will forget about her revenge and runs away from home. However, the young sorcerer is quickly discovered by the most dreadful of Archangels, Raphael.

Zagan is making moves to resolve the many problems on his plate when his old friend and enemy, Marchosias, suddenly shows up and calls for a gathering of all Archdemons at the ends of the earth. Zagan decides to go, and since he’s going out anyway, he takes everyone on a sightseeing trip! Meanwhile, Barbatos appears to be plotting something involving Zagan and Nephy...

Zagan searches for the whereabouts of his old friend Marc as the town livens due to a festival called Alshiere Imera. Apparently this festival bears the tradition of giving presents to those dear to you. Zagan and Barbatos have a late start on the festival and mill about in confusion. Stella and Alshiera are completely carefree and are here to play. And for some reason, Kuroka is now a cat? It seems another Archdemon is somehow involved and is hot on her tails!

Zagan and Nephy's clumsy cohabitation continues! As they're enjoying their time together, a sorcerer coveting the power of an Archdemon comes charging in, covered in armor from head to toe. Zagan easily repels them, but finds that they're a young dragon girl named Foll. Meanwhile, the church has brought over an Angelic Knight who's rumored to have even killed a dragon to tackle the newly crowned Archdemon... Will our awkward Archdemon and elf ever close the gap between them, or will all the commotion get in their way!?