Jinta Yadomi is peacefully living as a recluse, spending his days away from school and playing video games at home instead. One hot summer day, his childhood friend, Meiko "Menma" Honma, appears and pesters him to grant a forgotten wish. He pays her no mind, which annoys her, but he doesn't really care. After all, Menma already died years ago. At first, Jinta thinks that he is merely hallucinating due to the summer heat, but he is later on convinced that what he sees truly is the ghost of Menma. Jinta and his group of childhood friends grew apart after her untimely death, but they are drawn together once more as they try to lay Menma's spirit to rest. Re-living their pain and guilt, will they be able to find the strength to help not only Menma move on—but themselves as well? [Written by MAL Rewrite]

After a school trip goes terribly wrong, Homare Onishima, Shion Kujou, Asuka Suzumori, and Mutsu Amatani are left stranded on a deserted island. While Shion, Asuka, and Mutsu are frightened and desperate, Homare seems strangely calm. Fortunately for the group, this isn't the first time she's been stranded! Homare spent her childhood training with her survivalist father all over the world, climbing cliffs, trapping prey, building shelters, and obtaining valuable nutrition from moose testicles. To Homare, surviving on an uninhabited island with a slim chance of rescue is child's play. The only problem is the other three. As Homare shamelessly guides her classmates through the finer points of survival, including drinking fish blood and eating cicadas, the girls start to realize that being stranded might not be as bad as they had imagined. [Written by MAL Rewrite]

While testing out his camera on a bridge one summer night, Kaito Kirishima sees a blue light streaking across the sky, only to be blown off the railing seconds later. Just before succumbing to unconsciousness, a hand reaches down to grab ahold of his own. Dazed and confused, Kaito wakes up the next morning wondering how he ended up back in his own room with no apparent injuries or any recollection of the night before. As he proceeds with his normal school life, Kaito and his friends discuss what to do with his camera, finally deciding to make a film with it over their upcoming summer break. Noticing that Kaito has an interest in the new upperclassmen Ichika Takatsuki, his friend Tetsurou Ishigaki decides to invite her, as well as her friend Remon Yamano, to join them in their movie project. In what becomes one of the most entertaining and exciting summers of their lives, Kaito and his friends find that their time spent together is not just about creating a film, but something much more meaningful that will force them to confront their true feelings and each other. [Written by MAL Rewrite]

Tennomifune Academy is an elite institution for the best and the brightest, with the exception of Class 1-7, the so-called "Happiness Class." Each member of the classroom copes with personal misfortunes, and the special class is geared to help them move past their issues and find true happiness. After being accepted into the academy, An Hanakoizumi, Ruri Hibarigaoka, and Botan Kumegawa find themselves placed into the Happiness Class, plagued by dreadful luck, love problems, and bad health respectively. Alongside their classmates, they do their best to overcome the difficulties they are faced with in pursuit of a life filled with joy. [Written by MAL Rewrite]