It’s been several months since Caspian became Elincia’s knight. Their work hasn’t been too difficult thus far, but that is about to change when Sylvia tasks them with settling a dispute between two MagiTech companies: Thaumaturgical Industries and Harmonix. What should have been a simple investigation regarding the buying, selling, and creation of magical matrices becomes so much more when Cassadinia is attacked by Murakumos—the powerful MagiTech automatons that devastated the Colosseum during the Sorceress’s Knight’s Tournament. Discovering who is behind these attacks will take all the wit and skill these two possess. But they may not like what happens when they discover who the culprit is.

Arcadia's Knight Academy is the premier school for young men hoping to become a Sorceress’s Knight. Only nobles, people with power and prestige, are allowed within these hallowed grounds—which explains why Caspian Ignis del Sol is hated by everyone. He's not a noble, or of even slightly noble lineage. As payment for being enrolled in the academy, Caspian is sometimes given tasks to perform that take him outside of the academy walls. This time, his job is to deliver a letter to a Sorceress living in Ashtown, but when the train that he’s riding on is attacked by a mysterious band of thugs in cloaks, he’ll find that there is a whole lot more to this quest than he first imagined.

Caspian has made contact with the sorceress who resides in Ashtown, but Erica Demonica de Angelo is nothing like he expected. Arrogant. Narcissistic. Rude. She is everything that he despises, and now he's being forced to protect her. With disaster waiting around every corner, a clumsy but cute maid, a masochistic knight, the threat from an assassin looming over his head, and, of course, Erica herself, Caspian will need to hone all of his skill, strength, and wit if he wants to survive this precarious situation alive and sane.

Caspian and Elincia are sent to investigate rumors of a necromancer raising the dead near Parume, Caspian's hometown and a place that holds many unpleasant memories for him. What started as a simple investigation soon becomes much more when Caspian and Elincia are informed that what's been raising the dead isn't a necromancer but a Lich King, the highest and most powerful class of undead monster in the entire world. Now they have to travel around the area, to see how far the corruption has spread and save anyone who is still alive. With their lives and the lives of everyone in Arcadia at stake, Caspian and Elincia will be forced to push themselves to limit if they wish to avoid a fate worse than death.

Caspian Ignis del Sol, a knight in training, finds himself in over his head when he becomes the temporary protector of a sorceress who's been given the nickname "Succubus."

According to Roger Caillois, play is an occasion of pure waste. In spite of this - or because of it - play constitutes an essential element of human social and spiritual development. In this study, the author defines play as a free and voluntary activity that occurs in a pure space, isolated and protected from the rest of life.