In Yokohama, during Showa 5th Year, the city's fascinating growth counteracted the remaining impact of militaristic rule and the aftermath of the Great War. However, the community was rocked by the revelation that several female students from a prestigious school were savagely killed one evening. These ghastly incidents stunned the public. Only a month ahead of the occurrence, Elena had learned about her admission to the esteemed Ieva Girls School. Being an orphaned girl with no family, she was unaware that her invitation was a fraudulent plan to unearth the mystery behind her captivating aroma.