Melody Air

Melody Air is a local services company whose work and personnel provide investigators with a concrete record of Michiko Oshitani’s professional life shortly before her murder. The company’s client-facing cleaning operations shaped her routine, and its files helped establish where she had been working in the week before she disappeared.

Nature and Work

Melody Air’s main businesses were facilities cleaning, housekeeping, and environmental sanitation. Its office was near Hikone Station, and its roughly ten employees worked in an office that reminded Shuhei Matsumiya of a small local-government office. The company also had a branch director, Mr. Morita, who agreed to meet the detectives after they contacted the company.

Oshitani worked mostly outside the office, visiting hospitals and retirement homes to obtain cleaning contracts. Her responsibilities continued after a contract was secured: she checked on established clients and handled operational arrangements for new ones. That work included surveying a site and determining the scale of cleaning operation it required.

Oshitani’s Role and Record

Oshitani had joined Melody Air as a graduate trainee and had worked there for nearly twenty years. Sales-department section chief Okumura was her direct supervisor. When the detectives interviewed him, he recalled that the staff had become worried after going almost three weeks without hearing from her; they feared something had happened, but had not anticipated her murder.

The company’s records gave the investigation a practical route into Oshitani’s recent movements. Okumura provided a list showing that she had visited thirteen companies during the week in question, including hospitals and retirement homes, along with their addresses, telephone numbers, and contact people. That list allowed the detectives to follow up with her clients as well as her colleagues, because her work had taken her out of the office and into many separate facilities.

Investigative Significance

Melody Air’s importance lies in the contrast between the orderly traceability of Oshitani’s employment and the obscurity surrounding another strand of the case. Her employer could account for her long service, describe her duties, and supply a week’s worth of client visits. By comparison, investigators found that work at nuclear plants was often organized through long chains of contractors and subcontractors, many of them small firms; records for short-term workers could be difficult to recover years later, and some companies had withdrawn from the business after the 2011 earthquake and tsunami.

That contrast makes Melody Air more than a workplace mentioned in passing. Its staff and records helped turn Oshitani’s ordinary professional routine into a sequence investigators could check, while the fragmented labor arrangements elsewhere in the case showed how easily a worker’s identity and employment history could disappear from official view.