Suguru Geto almost never left the honor board at the police station, where the stands of the best detectives were assembled. So is his best friend, partner, Satoru Gojo.

By the time he was almost thirty years old, Suguru had achieved quite a lot, earned a reputation, bonuses every month, and of course the respect of junior police and detective station staff. Not without Satoru

A murder case is currently on hand, Gakuganji Yoshinobu, the former director of the police department of this city, who has been retired for several years. Suguru remembers him working in the office when he first started working. This old man gave out the first awards for Suguru, and appointed a newcomer as a partner at that time, since then Satoru has not stopped being his partner, even though almost seven years have passed. And now Suguru is personally investigating the murder of this man with Satoru

Special police cleaners have so far removed only the blood, the rest of the evidence was intact. Suguru squatted down, looking at the carpet, where there was a faint footprint of a size forty-three shoe

"What do you think, Satoru?"

Suguru asked lazily, collecting almost invisible dirt on tape to transfer the dirt DNA to the lab