On her thirteenth birthday, Rian is sent to join the harem of the emperor of Sekisou Kingdom. However, the person receiving her is Akatsuki, who had usurped the throne through "legitimate means" to become the new emperor! Rian is made empress, as she is deemed "suitable," but even though they share a bed, Akatsuki treats her like a child, like a hot water bottle to warm his bed. To help Rian sleep, Akatsuki challenges her with a problem to solve every night!? (Source: Kadokawa, translated)

After forging a contract with Berial, the king of Hell, young Illya obtains an incredible education in the art of magic. Her skills grow by leaps and bounds, catching the attention of the royal court and qualifying her for an elite apprenticeship. But court life isn’t all it’s cracked up to be. Illya quickly grows tired of the manipulative machinations of nobles and the scheming of the high court wizard. Her only choice? To quit! Leaving her post and the entire country, Illya now searches something new. Could crafting magical items be her true destiny? (Source: Seven Seas Entertainment)

The fifth prince, Fran, is arranged to marry Claire, a priestess who wields the power of light. This was supposed to be a political marriage between the royal family and the church. However, Fran and Claire eventually fall in love with each other…? (Source: Manga Park, translated)

Gay bar master Kaga Soichi is triggered by a customer interaction that brings back his painful past relationships. He pretends to be calm, but Kikuchi, a regular customer who notices that he is acting strangely, sees through his agitation. He wants to calm down, so he desperately invites Kikuchi. Soichi regrets making a move on the customer and decides to leave it at that. But for some reason, he finds himself showing Kikuchi his vulnerable side, and they end up spending the night together again...... (Source: Splush Comic, translated) *Note: Includes extra chapter.*

Nozomi Hayasaka is 25 years old, but looks like she's 15 (much to her chagrin). One day, will walking along the street during the day, she's stopped by a man asking why she isn't in school. It turns out the man, Shigeru Yoshida, is currently a junior high school teacher. He also turns out to be one year younger than Nozomi and someone who looked up to her in school. The series follows them as they start dating and falling in love.

Uguisu stands out from ordinary teenage girls. Spending most of her time in the library and never appearing in class, she still somehow manages to score full marks in tests. Though she is difficult to deal with at times, I developed a strange relationship with her. One day we were entrusted a strange order to investigate whether the genius mathematician Kiryu is actually a magician. We then went to the Kirin Mansion, the place where professor Kiryu resides. And then two days later, professor Kiryu became a headless corpse. Though the suspects are limited, the intriguing results shows that everyone here are clean!? Is the professor really a magician? Is this really a murder case? Are there any victims? Is there an actual culprit? These doubtful questions will be directed against through different "logical arguments." (Source: Back cover of the novel)