Satomi Shinobu works in the Mobile Investigation Unit of The Tokyo Metropolitan Police Department. The Mobile Investigation Unit conducts the initial investigation at all crime scenes. He works with Inokuma Yuki. They are a couple, but they keep their relationship a secret at work. They both hope to work at the #1 Investigation Station.
One day, they meet beautiful Tachibana Kara at the site where a dead body was found. Kara appears
