Takumi's wife dies at the age of 25, leaving behind their son, Yuji, and a very special picture book. It tells a story of those who die- but are remembered by the loved ones left behind- going to a planet called Archive, and returning to visit when the rainy season comes. Suddenly, the picture book seems to come true, when Mio shows up... without a memory. (Source: Anime News Network)

This spin-off manga is a comedy which re-imagines the sins from the original manga as high school students.

Now, let's kill the girl and save the world! The world has been shattered. As a result of the most dreadful of diseases that afflicts only girls—the "Labyrinth Disease." That's why the students are taking lessons. Lessons for the purpose of killing the girl. Learning magic, obtaining the map of the labyrinth, forming teams, and studying the weakness of the girl... The time limit is 6 hours. If the girl isn't killed within that time, then the world gets destroyed. "I have no interest in the world at all so please spare me. Frankly, it's really suffocating." Together with the one who said these words, the most horrible protagonist in history, enter the world of whizzing magic and surging youth. A school fantasy in labyrinth raiding, begins here!

When young Serephione has a fateful encounter with Lou, the cute and fluffy guardian tiger, it opens the floodgates to a torrent of memories. She realizes she had a past life as an office worker in which she loved to read fantasy books, including one featuring the infamous villainess...Serephione Granzeus! After using her immense magical power in battle, the novel's Serephione was defeated and condemned to die alone. The surest way to escape that fate is avoiding magic school altogether...so Serephione vows to hide her power and become an adventurer instead! But what will she do when major characters from the book threaten her plans? (Source: J-Novel Club)

Kidnapped and stuffed into a trunk by an unknown assailant, teenager Kazumi bursts forth from the confines of the case to discover that she has been stripped not only of her clothes, but also of the memories of her life before the kidnapping. When she is recovered by a pair of schoolgirls, she doesn't recognize them as her best friends and roommates, Umika and Kaoru. As Kazumi tries to settle back into her normal life, she quickly realizes that her former "normal" was anything but! (Source: Yen Press)

Tsurugi Tatsuno is a boy who competes in Virtual Digimon Battle tournaments. When a Kuwagamon appeared in the Real World, his Greymon came to life and protected him. Tsurugi is summoned to the Digital World by Piximon to save the Digital World from the evil Barbamon. Since his Digimon has a hexagon shape on him, it's an Illegal Digimon meaning that Digimon bearing the symbol can help save the Digital World. Tsurugi's Greymon later De-Digivolves to Agumon and they meet other characters destined to save the Digital World from the forces of Barbamon. Now they must stop Barbamon and his minions before they get all the DigiMemories and take over both worlds. (Source: Wikipedia)

The prequel story depicts how Shinei became a pilot. *Note: This manga adapts the prequel stories depicted in the 10th volumes of the light novel.*

Zihao Zhang, a brilliant cross dresser who always knows how to pick the killer skirt to wear, just got dumped ruthlessly. What would happen when he accidentally catches the eyes of Yuze Shao, a super straight guy who always assumes himself to be "unbendable"? Suit? Lolita dress? Hanfu? All pieces of cake for Zihao Zhang! (Source: WebComics, edited)

The lively yet clumsy new maid June does nothing right except cause trouble and yet, instead of berating June, the young and gracious madam forgives her and shows favoritism among the maids. Both have admiration and affection for one another, but will it turn into something more? (Source: Lezhin)

Vivy, the world’s first autonomous AI, sings to bring joy to her audience as a cast member of NiaLand, Japan’s largest theme park. In this world, AIs have become integral to human life and exist to carry out their missions. One day, out of the blue, an AI claiming to be from the future approaches her, revealing that in one hundred years, advanced AIs will turn on the humans they once served, sparking a violent war to annihilate humankind! When he asks for her help in preventing the conflict, Vivy agrees to ditch the stage and take up the century-long mission against her kind in order to save humanity. (Source: Seven Seas Entertainment)

Hiel was ridiculed for having a useless crest and was exiled to a remote island. When he grabbed an ice axe to reclaim the island, the true effect of his crest was revealed. With his production cheat, he will reclaim this uninhabited island and start his life in paradise.

Karen Kohiruimaki always felt out of place in the real world. Due to her extreme height, she found it hard to make friends with other girls her age. Everything changes when she's introduced to VR and Gun Gale Online. In GGO, Karen is free to play the cute, chibi avatar of her dreams! Can Karen find friendship in this bullet-ridden MMO...? (Source: Yen Press) *Note: Chapter count reflects the magazine releases; the manga was re-arranged into 20 chapters across 4 volumes.*