The book tackles French philosopher Émile Chartier, also known as Alain, and his book Alain on Happiness, with the character Asuna Kangoshi explaining the topic. [ANN]

It is based on the work "ピクニックは終末に" which Takami Kazuyuki submitted under the name of "Enokino Hidehiko" (榎野英彦) to the 6th Dengeki Game Novel Award and made it to the final selection. Each volume is an omnibus, with a different protagonist in each work. The story revolves around a boy and a girl who are guided by members of a mysterious organization called the Organization to visit parallel worlds, where they help to change those worlds from the brink of destruction to a better one.

Twins Shuu and Kashito attend a school for training onmyoji (exorcists). They set out on a forbidden test of courage in order to prove themselves to everyone at their school, but unexpected events await them...! (Source: Shonen Jump Plus, translated)

"I'm so glad you don't like me." The school we see, the school he knows, the school she wants, the school he hates, are each completely different. Even though we are isolated on the same island, we do not see the same world. This is a story about our subjectivity. (Source: MF Bunko, translated)