Yuuki Kana

Rud is a tank of the Hero's Party and is said to have the highest defense ever in history. The party often does labyrinth raids, but to Rud, it means more than just a raid. To cure his beloved sister's illness, he is in search for the wish-granting treasure that might be hidden in those labyrinths. But one day, the arrogant hero kicks him from the party after an unsuccessful…

Only a pure girl may enter into a spirit contract. At Areishia Spirit Academy, the daughters of nobility are assembled to take elite classes and become spirit elementalists. A boy named Kamito happened to be peeping on a student named Claire while she was taking a bath, and he accidentally makes a contract with a spirit instead of Claire. Now, Kamito has become something once…

In order to save the world from the side effects of Washuu's latest experiments, Masaki Tenchi goes undercover as a teacher. He is immediately swept up in a conflict between the student council and the science club, who each have a member that is key to Tenchi's mission. Source: ANN