A story between the Sea and the Earth. Childhood friends Hikari and Manaka, who live in the sea, together with their friends Kaname and Chisaki, are forced to attend school on land after their own school undersea is closed. But due to a special encounter, their lives gain a new twist.

Angel Beats! -The Last Operation- will reveal why the Afterlife Battlefront members came into this world. New Angel Beats! manga series serves as the "true arc." (Souce: MangaUpdates)

The second CLANNAD manga adaptation, serialized in Comi Digi+ starting June 21, 2007.

A 4-koma manga based on Maeda Jun's original concept of Angel Beats!

Tachibana Kazuya, Kumazawa Daigo, and Niinuma Hiroko all want to be popular. But they don't know how to do so! So, they try and create a club to research and find out how to become popular.

For the sake of his little patient, Resident Doctor Yashiro Takashi agreed to a bet with the beautiful doll maker, Kuze Shinobu, who claimed to be his "destined one." Unaware of their intertwined fate, Takashi had bonded himself with Shinobu in a spirit marriage.

The girls of the popular seinen magical girl series are reimagined in different scenarios across all sorts of genres by various mangaka.

Set in 2002, 3 years after the death of Shigeru Akagi. Hiroyuki Igawa, following the advice Akagi gave him on his deathbed, runs into his old friend Ten while visiting his grave. Hoping to put his own abilities to the test, Hiro challenges Ten to a game of mahjong, but Ten disappears right as their match reaches its climax, and thugs looking for him wait right outside the parlor. They take Sawada hostage, and Hiroyuki is given only a week to find the seemingly abducted Ten.

Saeki is intrigued by the reserved Kurata.

Junior high school student Amane lost her parents early and lives with her uncle Yuki-chan. Even though he had a faint feeling for Yuki-chan, she lived calmly for the same days, but one day, when she cut her hand with a book in the study, she summoned a devil from another world (very beautiful). Will call out. Amane has signed a contract with the devil (very beautiful) for Yuki-chan, but that's why she ended up being a "migration consultant from a different world for the devils suffering from population growth"...? *Note: Includes two extra chapters.*