It happened after school one rainy day... A group of friends have stayed behind to prepare for the next day’s school festival. One moment they are idly telling ghost stories but the next an enormous earthquake strikes and the entire school seems to fall down around them. They awake to find themselves trapped in a parallel version of their school. As school abandoned and disheveled and whose calendar dates back to 1927. Can they find a way out of this nightmare or are they doomed to the same fate that befell the other victims whose corpses that lie numerous throughout the school? Note: Chapter counts contains an extra chapter and an origin chapter.

Won the 5th Kodansha Manga Award for shounen in 1981.

Lexia is the first princess of the otherworldly Kingdom of Arcelia. She is the “strongest” princess in a sense, and no one can match her determination and energy, but when she became bored with her life in the castle, she said “I've decided! I'm going on a journey to save those who are suffering!" With Luna as her escort, a girl with a background as a skilled assassin, Lexia (forcefully) sets off on an adventure around the world! With cheats, a cute adventure tale begins.

Tosaka Subaru, an art student, lives in an apartment next door to his senior, Yohei Yumoto. Yohei's artwork captured his heart at an open campus event, which led Subaru to the same university. However, Yohei himself is a bit of a slacker and a difficult person handle. One day, when Subaru sees Yohei being friendly with a woman, he realizes that his feelings for Yohei are not than just respect, but something special...? (Source: Takeshobo, translated) *Note: Includes three extra chapters.*

Takeru is a unsuccessful host who encounters Mamon, a tattoo artist. She tattoos him a special one, the "Deer", which release strong pheromones that turnes females into slaves. But...

Takaya was abandoned by his classmates in a another world. However, he is taught that his manufacturing skills are at a transcendental level and awakens! In addition, maids, priests, arch-demons, wizards, and even wolf girls gather around!?

*A collection of stories based on the Azur Lane mobile game.*

In an postapocalyptic world practically covered with water, Wadatsumi, a boy who lives in that he think to be the last earth piece, knows a mysterious girl dragged by the waves of the sea. Where she comes from? There are more zones of earth in the world?!

Kasai Rena is a hard-working office girl with a peculiar interest she hides from everyone...

One day while studying, Ikenouchi Jinta gets crashed in upon, literally, by a girl wearing magic boots who fell through his roof! However, these magic boots have one slight problem with them...