After graduating, all Elix wanted to do was rest for a while, but an invitation changed the course of her summer vacation. She had been a writer on an online platform since college and accumulated quite a huge number of readers. She received an invitation from the online platform about a newly-developed variety-reality show with their writers. Thinking it would help her overcome her social anxiety and familiarize with different kinds of people, she agreed to participate, and thus the start of her unexpected adventure with her fellow writers.

The mysterious band that you will ever know! Detective club is banned in Northville High school and there's a rule that every student shall join a club. A group of students both have talent in music and detective stuff formed a club with a little secret. "Our club's secret? It is a Detective Club disguised as a Music Club." Will their secret will kept hidden until the end?