Detective Otonashi Tsukiko works for the First Investigation Division team led by Tannai Ichio. She is also obsessed with the "Toshi Densetsu" manga. Detective Otonashi Tsukiko even claims she became a detective because of "Toshi Densetsu." Whenever a case happens, Tsukiko Otonashi contemplates whether it may have any relation to "Toshi Densetsu". Meanwhile, forensic investigator Katsuura Hiroto falls in love with Detective Otonashi Tsukiko at first sight. (Source: Asianwiki)