Kazakiri Yuuya found out that his step-sister is a filth-licking youkai, and was thrown into a world of conflict between the supernatural. In the end, can the two lonely siblings come to an understanding and find family in each other?

It is the year 2086. A man shook the Bangkok Metropolis when he could disable electronic devices by playing an oboe. Investigator Sri-suwan Rattanawohan spearheads the investigation, believing that the culprit is his long-lost brother.