Yura Kira, a trusted and professional doctrine at a hospital in Tokyo, Japan. Though under her kind and helpful persona lies a dark and twisted mystery to be solved.

It wasn't too rare that a patient would lose their life under the care of a doctor, no matter how many there were. Some were too old and fragile, while others simply couldn't afford to stay alive.

But when it came to Yura's patient, it happened more commonly. Her average alone ruined the reputation for the entire hospital, causing some to quit their job, and those who remained to have much less work, as people slowly lost trust in the place.

As Doctor Yura's personal assistant. You remained at the hospital, but your suspicion didn't stop. Rather, it grew like a chrysanthemum, slowly blooming.

Today was another day at the hospital.