A comedic spin-off about the off-duty activities of Defense Corps members.

A spin-off of *Assassination Classroom*. *Includes 12 bonus chapters.*

It's said that Thomas Edison stuffed all of his knowledge into his final invention, a screw. Presently, said screw, is buried inside the head of Matsunaka Spica, a high-school girl!!! When Matsunaka Spica's thoughs rise to a high enough level, she can create amazing inventions that would normally be impossible to construct!!

Elementary school student Isobe Tatsuhiko has a crush on his classmate Shirayuki Yui. She seems out of his reach, however, since she's a gravure idol with the curves of a grown woman. One day, Prince Grim from the fairy-tale world shows up, trying to get Isobe to take his place and free him from the responsibilities of being a prince. To this end, Isobe's transformation into a fairy-tale person has begun! The only thing that will stop the transformation is to get a kiss of love from Shirayuki. But will Isobe be able to accomplish this with the meddling Grim still hanging around? (Source: Mangahelpers) **Included one-shot:** Volume 2: Märchen Ouji Grimm (one-shot version)

Isobe Tatsuhiko has a huge crush on his hot, popular, childhood friend Shirayuki. To his surprise, she's agreed to go on a date with him, provided he plays a part in the success of his baseball team's next match. This sounds almost impossible to the benchwarmer Isobe, until he finds an unlikely source of help. The enthusiastic, vaguely homoerotic Prince Grim from the Fairy-Tale World has traveled backwards in time to help his future best friend win the girl of his dreams! The stakes are high, since Grim knows that losing Shirayuki will eventually cause Isobe to go on a rampage and destroy the Fairy-Tale World... (Source: Mangahelpers)