Showa 100

The body of the affairs director of the prestigious Eimei University was found, with a letter written next to it - To the comrades of the Showa 100 Years - written on it.If the Showa era continues to this day, 2025 will coincide with the 100th anniversary of the Showa era...

Ukyo (Yu Mizutani) and Kaoru (Terawaki Yasufumi), who were involved in the investigation, began to track down a murder case that occurred in the first year of the Showa era - they noticed that the signature of the letter was actually the same as that of the victim who was the secretary to the chairman of Eimei University.That case was the first murder that occurred after the Yuan Dynasty was changed to Showa, and it remains unsolved; and the location where the remains were found now actually coincides with the crime scene that year.

The letter also said, “Please reveal the truth on my behalf”.Ukyo and Karu asked Wakamatsu Gentoku (Takahashi Hiroshi), the current chairman of Eiime University, but received no clues; then they heard the statement of Wakamatsu Reika (Kurosaki Rena), a student who had appeared near the victim's desk and behaved suspiciously.Surprisingly, Ling Hua said he wanted to help find the murderer; and said that if he were my grandfather, he might know the ins and outs of the letter, so he introduced former chairman Hiroshi Wakamatsu (Masami Horiuchi) to the Special Order Department...

The secret that the chairman of a prestigious university has hidden for many years

Behind it, there is a mystery that should not be solved...

A letter sent from the past will illuminate the sealed darkness!