Taking place in the year 1937 on the eve of World War II, the story involves a mysterious spy training organization known as the "D Agency." The organization is established by Lieutenant Colonel Yuuki from the Imperial Japanese Army. His ideals lead him to recruit people beyond military academy graduates and personnel, while training them to become skilled agents in arts of manipulation. These agents would become a specialized team to conduct operations. One such antihero agent, under the name Jirou Gamou, goes on a harrowing mission to uncover secret documents titled "Black Notes," while battling forces from within and without his own ranks.

The need for detectives has dramatically increased in response to the increasing number of violent crimes. This year, a boy and a girl enter Marimine Detective Academy, an ultra-exclusive school, and the only one in Japan that offers the "National Detective License." The boy is Misaki Fujisaki, the grandson of the man who was once known as the "Crime King." The girl is Shia E. Hazeldine, the adopted daughter of the man known as the "Detective King." These two descendants of sworn enemies will meet each other by chance! And as their school days begin, an incident occurs right from the entrance ceremony!? Moreover, for some reason, Fujisaki's score is higher than Shia's, even though she supposedly solved the mystery first... "I challenge you!" "Don't regret this, princess." This is a unique academy story where students compete to find the truth. This is intellectual excitement at its highest peak! (Source: MFBunko J, translated)

The genius demon king who played the fool will lead the heroes of the losing team.

Nalgae lives in a port town where various races, cultures, and languages come together. One day, the ground suddenly cracked, and what was waiting for him at the place where he fell down was a mysterious fluffy beast! Moreover, it ended up coming to his house? A peculiar coexistence with a mysterious creature! (Source: prtimes, translated)

The modern-day gods and deities fantasy manga centers on Shiori, an ordinary college student who has been able to see strange things since she was a child. On the verge of losing her job after her employer goes bankrupt, Shiori gets introduced to a "certain job," in which all the Japanese gods, goddesses, and deities are the clients. (Source: Anime News Network)