Special edition of Dengeki Magazine containing 13 stories and illustrations parodying each month of the year. **Short Stories** 1. Shinigami no Ballad.: Cheerful Charmer Momo. \[Hasegawa Keisuke\] 2. Wizard's Brain: Happy Valentine \[Segusa Reiichi\] 3. Toaru Majutsu no Index?: Toaru Sangatsu no Zouyo Koukan & Toaru Sangatsu no 201-maki \[Kamachi Kazuma\] 4. Shiritsu! Sanjuusangen Dougakuin \[Satou Kei\] 5. Asura Cryin' \[Mikumo Gakuto\] 6. Inukami! \[Arisawa Mamizu\] 7. Toradora!: Nisetora! \[Takemiya Yuyuko\] 8. Kirin wa Ichizu ni Koi wo Suru: Tsuki to Anata ni Hanataba wo remains \[Shimura Kazuya\] 9. Kino no Tabi: Gakuen Kino \[Sigsawa Keiichi\] 10. Kieli \[Kabei Yukako\] 11. Resin Cast Milk \[Fujiwara Yuu\] 12. Sora no Kane no Hibiku Hoshi de \[Watase Souichirou\]

Ever since Jun, a third-year middle-schooler, moved from Tokyo to a rural town his life has been boring. The only way he blows off steam is by shooting a gas gun at an abandoned love hotel called "Nocturne." There, he encounters four other kids the same age, including a school crush named Saki. After faking a UFO sighting on a whim, the five decided to band together to pull similar pranks around town. However, things gradually stopped being all fun and games.

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.