When his oddball father suddenly decides to remarry, high school student Toujo Basara is about to acquire some very peculiar new family members. Enter his new seductive step-sisters, Mio and Maria. When Basara discovers that one of his step-sisters is a succubus and his other a recently crowned demon lord, all hell breaks loose! Basara is almost forced into a contract with his demonic sisters where he would act as their eternal servant—but something goes wrong. Instead, a reverse contract is formed, and Basara becomes the master. Between fending off their seductive advances to coping with the attacks of rival demon contractors, Basara has a big learning curve if he is to survive. (Source: Seven Seas Entertainment)

Akira Shiroyanagi is a high schooler who loves challenging games and Konpeito candy. One day, while heading to school, he encounters an enigmatic woman called Mion. After that, Akira and a host of other individuals are kidnapped and forced to become test pilots for a mysterious organization. They are given unique abilities and pitted against each other. Armed with his newfound, special ability, Akira becomes determined to take down this sinister group and beat their game. He has to rely on his guile to overcome all sorts of obstacles in a captivating battle of wits! (Source: Comikey)

Collection of stories from different artists. Website [Pixiv](https://www.pixiv.net/en/artworks/30503108)