One day, Uruno, a useless Wolf, is looking for a new home. He finds a forest full of animals that don't quite fit their parts. A bunny that is ill tempered, a clumsy cheetah and a near-sighted eagle.

Hentai Anime adaption of famed illustrator Tony Taka's and studio Ciel's eroge, the tennis themed Fault!!. During the summer, Sugiyama travels with his fellow tennis team members to a remote training camp. While there, his step-sister Mio has other training in mind. However his doubles partner Saeki has something else on her mind after seeing their training.

Far away from the hustle and bustle of the city lies a small rural town in a mountainous region. A young man meets a pair of beautiful sisters there along with their mother, and lives together with them. Their days together are full of happiness, but he didn’t know that there is a hidden secret.