The two books are a continuation of the Evil Spirit Series (Akuryou), but in a different setting.

The Black Board is an advertisement board over a kilometre long on which thousands of job offers are posted. Jobs ranging from the most normal to the most sordid... But how do you react when, on one of these ads, you discover that someone is offering money to murder you? And that the biggest bounty hunter in town is already after you?

The young lady Lina originally comes from the wealthy count Randall’s family line. However, because of the bad weather that resulted in bad crops and because of her good-natured father, the family ended up being severely swindled. She quickly fell and became a poverty-stricken young lady. But then one day, Lina is forced to participate in the evening party to decide the fiancée of the third prince Gilberto... Since she stuck out like a sore thumb she decided to leave after she got a glance of the prince, but... What is that dazzling light behind the cheers of joy the young ladies are making...?! (Source: Kadokawa, translated)

Tohru Yanagi, aka BYDE, is an obsessive gamer with a penchant for fantasy tropes. It should come as no surprise, then, that after playing his favorite VR game "Last Fantasy" for 100 hours straight, his heart gave out and he died. In the endless void after death, he met Celuenon, the god of gaming. Intrigued by his skills, Celuenon invites him to the world of Krenaklem, a land of swords and sorcery and all of those typical isekai tropes. Tohru accepts, and naturally is sent to another world. So what's the catch this time, you might ask? In lieu of giving him any skills from Last Fantasy, Tohru instead was gifted a deck from "Monster and Magic Masters" - a physical card game he used to play in the past. And just like the trading card game, as long as he has the required mana he can summon any card from his deck, ranging from monsters to his faithful wolfgirl assistant Waff.

Cesare Borgia, the most beautiful hero in the history of the Renaissance. The story depicts Cesare's first and last love, which oscillated like a flame for a moment between history.

「You are my fiancee. But, there’s no need to curry favor with me」 Lillimaria, a young daughter of an impoverished noble family, had been chosen as the second marriage partner for an old earl from a remote region. For the sake of her family, she had prepared herself for the worst and headed to the family she was marrying into, but what awaited her there was a youthful good-looking earl accompanied by a strange-looking lion. Then, the perpetual youth who was possessed by a demon, came to offer her… a marriage arrangement only in paper!?

“You can look down on me, and reject me. I’m not asking you to understand me. ――― This is my love.” Countess Rosenstein is hated for being a selfish and domineering woman. But that was all an act she put on so that her husband could freely love the person he loved and spend time with his lover.

Using the memories of her previous life, Raze has made a name for herself as an elite soldier of the Cyan Empire at the age of 15. Her next mission, as ordered by her boss, the devilish Prime Minister, is to go undercover at the Central Imperial Academy of Magic as a student, and watch over sons and daughters of the empire's rich and powerful! Raze is bewildered by the school life, which is the complete opposite from her life in the army, but she gets used to it. Suddenly, her friend, Kana, tells her that they are in an otome game and that Kana is the villainess! What's more, if they don't avoid the bad-end scenario, Raze and her friends will be ruined! From that day on, Raze must fight out front and behind the scenes? But one after another, unexpected events that do not exist in the game occur...? (Source: Ichijinsha Novels, translated)