Satomi Akesaka

Walking home from school Aya Iseshima stumbles upon a brutal brawl between two girls fighting over something called the "Platonic Heart"...Afterwards Aya befriends one of the fighters and finds out the Platonic Heart is a jewel that can grant one wish for any girl that posseses it and there is a battle royal tournament going on for its control. Unfortunately for Aya it seems her interference has now registered her as a participant in the fight.... (Anime News Network)

After a 27 year old man has chance encounter with a fifteen year old girl, they discover that they are actually brother and sister. They were separated over a decade before due to their parents divorce, but now she is coming to move in with him and their father. Will they fight their desire for each other or give into incestuous desire? (imdb)

Pkpk, Shrshr, and Krkr are three fairies who live in Fairy Forest. They meet at their house in the forest to chat, use magic freely in the Room of Spirit and Time, peek into other worlds and imagine all sorts of stories at Dubbing Lake, and just have tons of fun! Come and spend some quality gdgd time with the gdgd Fairies! (Crunchyroll.com)

An unnamed girl acts as a mediator between humans and "fairies" after they have become the most prosperous species following the decline of the human population.

Many years after a great tragedy killed 90% of the people in Japan, three girls arrive in the ruins of Tokyo. In the devastated capital, their unusually clean clothes set them apart. But that's not the only strange thing about them - they also each wield supernatural powers. They call themselves "Coppelion," and are on a mission to save the people of Tokyo. (ANN)