After a family tragedy turns her life upside down, 16-year-old high schooler Tooru Honda takes matters into her own hands and moves out...into a tent! Unfortunately for her, she pitches her new home on private land belonging to the mysterious Souma clan, and it isn't long before the owners discover her secret. But, as Tooru quickly finds out when the family offers to take her in, the Soumas have a secret of their own--when hugged by the opposite sex, they turn into the animals of the Chinese Zodiac!

Kobayashi lives alone in an apartment, until one day, Tooru appeared and they ended up living together. Tooru looks down on humans as inferior and foolish, but having been saved by Kobayashi-san, she does everything she can to repay the debt and help her with various things, although not everything goes according to plan. A mythical everyday life comedy about a hard working office lady living with a dragon girl.

Oreki Houtarou is a minimalistic high school boy. One day, he joins the Classic Literature Club at his elder sister's request. There he meets Chitanda Eru, Fukube Satoshi, and Ibara Mayaka. Chitanda is a calm beautiful girl but she turns into an embodiment of curiosity once she says, "I'm curious." Fukube is a smiling boy with a fantastic memory who calls himself a database. Ibara is a short girl and is strict with others and herself. They begin to investigate a case that occurred 45 years ago. Hints of the mystery are buried in an old collection of works of the former members of Classics Club. The collection is titled "Hyouka."