A spin-off manga called Hyakka Ryouran: Sengoku Maidens, illustrated by Yura Shinano, began serialization in Dengeki Daioh and sold two volumes between December 28, 2009 and October 27, 2010 by ASCII Media Works under its Dengeki Comics imprint. (Source: Wikipedia)

On her way home from the grocery store, Norie notices a cat girl huddled on the ground. It turns out she's a Nekomata called Tama (a nekomata is a "ghost cat" with 2 tails), and she seems to be ill. Norie takes her in and attempts to care for her, despite her own financial troubles. (Source: MangaHelpers)

*"It's about time I change bodies."* A magician who lived for hundreds of years by taking the body of another was taking a stroll through the forest in search of a new vessel when he found a young boy who was on the verge of dying with a great number of slaughtered monsters before him. With the condition that the magician would protect Erena, the boy's companion, the boy let the magician take body. However, what the magician did not know was that the boy was the swordsman that had been expelled from the hero's party.

Anchovy returns to Anzio High School after finishing a battle with a college selection team as a member of the Tank Road and High School Students Association. My next goal is to retrain my school where I felt the regret of losing at the national tournament! Anzio's tank road restarts now--. *Note: Includes 3 extra chapters.*

In an alternate world, Beatrice is alone in her brilliant and shining position that she has earned for mastering sword and magic, and she wants to cry a little. It seems she is promised to marry a miniature orc, but what's aggravating her? (Source: Anime News Network)

This is part of Touhou Project manga.

A parody of Mothy's Aku no Meshitsukai story.

The origin of Boogiepop revealed at last. Not only is this the long-awaited story of how Boogiepop was born, but it is also the tale of four very strange individuals: a detective, an eater of fear, a popular writer and a skilled assassin. Uncover all the secrets.

For his high school debut, Minto Shishidou pretended to be an outgoing playboy, spinning lies about the girlfriends he goes through. This corner he backed himself into weighs heavily on his mind when he joins a school trip, and he’s determined to use the occasion to get a girlfriend for real. But then an unimaginable incident strikes him and his classmates, setting the stage for a locked-room love comedy centered around the wishes of these boys and girls. (Source: Natalie, translated)

Middle school student Nanami, who was abandoned by her father. Nagakawa, whose wife left him and took their son. Nagakawa's son Kenta, who was abused by his mother's boyfriend. These three injured souls meet in a shabby apartment building, and rusted gears begin to turn.

An anthology comic of Juusan Kihei Boueiken by various mangaka.