Karashima is a high school boy with a beautiful voice. So beautiful that he can make anyone do anything, just by saying the words. Because of his potentially dangerous ability, he distances himself away from people but soon finds himself in the middle of various criminal investigations that he can help solve, and a girl named Kokubu who seems in love with him.

Notes:
- Includes the one-shot "Hana Dorobou".
- Includes the one-shot "Coffee Hirari".