"Winter has come, and Princess Syalis will do anything to stay warm, including creating a DIY magical device (known as a "Ko-tatsu"), knitting woolen underwear and trying to convince the castle blacksmith to make her a window to keep out the drafts. When she accidentally dies yet again--along with Stamper Cat--curious resurrection complications ensue. Then it's Christmas and New Year's! Who will the Demon King designate as naughty or nice? And will...

"Kidnapped by the Demon King and imprisoned in his castle, Princess Syalis is ... bored. She decides to while away the hours by sleeping, but getting a good night's rest turns out to be a lot of work! She begins by fashioning a DIY pillow out of the fur of her Teddy Demon guards and an 'air mattress' from the magical Shield of the Wind. The princess's hapless demonic guards soon discover that their captive expects to be treated like, well, a princess....

"Determined to expose the weakness in the vow binding Zack and Ray together, prison guard Cathy declares it's time for the two to bid each other farewell. To that end, she continues inflicting punishments upon the pair, who find a treacherous path laid out before them. Things only get worse when, after a dose of Cathy's special 'medicine, ' Zack's urge to kill runs rampant, and he brings his scythe to Ray's throat...!"--Back cover.

At long last, Cathy faces Zack and Ray in the execution room! Cathy hands Ray a pistol, trying to get her to turn on Zack, but will her plan backfire? One way or another, the Floor B3 saga comes to a close in Volume 5 of Angels of death!

"After a life-and-death struggle, Zack and Ray have finally made it through Floor B1. With the surface so tantalizingly close, all that's left is to find a way up. They decide to split up and search--a decision Ray starts to question when she finds herself all alone before Father Gray once more..."--

The sun shines on the Demon Castle...but it's supposed to be perpetual night in the demon world! Then Zeus--Poseidon and Hades' little brother--joins the Demon Castle staff. Everyone is in awe of him except the princess, who quickly finds ways to use the most powerful of the mythological gods to help her achieve her personal goals--sleeping better and opening a cat cafe. Then, in a stunning reversal of fortune, an important castle resident is taken...

"Kidnapped by the Demon King and imprisoned in his castle, Princess Syalis is ... bored ... Princess Syalis comes to the surprising conclusion that being good will earn her a good night's sleep! But none of the demons trust her sudden transformation. The princess's latest dilemmas include a growing urge to use the bathroom when it's out of order, her pet Eggplant Seal outgrowing her quarters, and growing into a giant instead of up. And then it's time...

"Celebrate New Year's, Valentine's Day, and a very special pajama party at the Demon Castle with the princess and her demon friends--er, captors! Then the Five-rings-pics athletic tournament captures the imagination of demons and human alike. But when one of the athletes turns the demons' human friend--er, hostage--into a besotted fangirl, the castle staff doesn't take it well. Also, Syalis imbibes a potion that induces her greatest fear, Demon King...