Supernatural beings such as youkai and spirits, called “freaks”, co-exist with humans in this world. Mikitaka lives with his older cousin Shizumi on the island of Kakuriyotobari, where 80% of the residents are freaks. One day, his childhood friend and first love Yuuka returned… as a ghost! She didn’t know why she became a ghost, and they let her stay with them since they’re old friends. However, that wasn’t the end. Shizumi was revealed to have regenerative powers after an accident, as those closest to Mikitaka became freaks. With the help of freaks mediator-in-training Rio and her tsukumogami (tool spirit) assistant Tsukumo, he set out to find out the girls’ true identities and the cause of their current state.