Detective Tomo Yashiro travels with Detective Risa Narumi and Detective Shinji Kusaka to the Kyoto Prefectural Police Headquarters. 3 days earlier, Yusuke Takemura, who ran a cafe, was found dead in Kyoto. 3 of the same kanji characters for “man” were written in red ink on his body. 5 years ago in Tokyo, two men, working in the IT field, were found dead in succession. Three of the same kanji character for “bug” were written in red ink on one of the dead man's body. The other dead man's body contained three of the same kanji character for “thing,” written in red ink. The two cases from Tokyo were never solved. Detective Tomo Yashiro and Detective Risa Narumi feel the cases are linked and attempt to the solve the murders. (Source: AsianWiki)