A school girl named Eri is magically summoned by a magician named Rex, intent on doing some scientific research observing people from different worlds. Instead of being terrified about her current situation, Eri manages to secure Rex’s promise to summon her again every week. After all, being in a magical world is a lot more exciting than life as a school girl. (Source: MU)

Loved by men and despised by women, University student Otonashi Karen is a major "burikko" (two-faced, usually nicer to boys) whose love for Takeda Gunji can't be denied. This two-book series shows how far Karen is willing to go, to get Gunji to fall in love with her.

Subaru Takanashi, a first-year high school student, is struggling with her first experience living alone. But her neighbor, Hikari, is a caring young man with excellent life skills...!? (Source: Kodansha, translated)

An anthology comic of Otome Game no Hametsu Flag shika Nai Akuyaku Reijou ni Tensei shiteshimatta... by various mangaka.

A new series of kinky and cute stories about a boy with glasses who is popular in class and a girl who has the desire to devour him. (Source: Sho-Comi, translated)

A pair of researchers stays behind on their dying planet of Eltria with their two daughters, Amitie and Kirie, in hopes of finding a way to revive the planet. But when the husband Granz falls ill it seems their dream of reviving the planet will die. Against her older sister's wishes, Kirie sets off with her childhood friend Iris to seek help from a distant alternate world. They arrive in Japan on Earth to search for the key to their planet's regeneration. There, they meet Nanoha, Fate, and Hayate. (Source: Anime News Network)

This is the side series of Crows. It is about Kuzugami before he became the strongest delinquent in Japan.