is a Japanese police procedural television drama. The first season, subtitled , was set in a fictional version of the Tokyo Metropolitan Police Department division that specializes in investigating cold cases, which is based on an actual division established in Japan in 2009. The first season aired from April 13 to June 22, 2010 on Fuji TV's Kakku time-slot. It premiered to an 18% rating. A special two-hour-long episode which served as conclusion to the first series was aired on July 8, 2011. Season two of Zettai Reido, subtitled takes place a year after the events of the special episode, after Sakuragi and her fellow detectives have been transferred to the undercover investigation division which deals with current crimes. The second season aired from July 12 to September 20, 2011 on Fuji TV's Kakku time-slot. It premiered to a 15.4% rating and ended with a season-high rating of 16.3%. The last leg of the second season featured guest star appearances by Yūsuke Santamaria and You Yokoyama. The opening and ending themes for season one and two are performed by rock duo Love Psychedelico. Series synopsis Izumi Sakuragi (Aya Ueto) is an energetic rookie detective assigned to the Tokyo Metropolitan Police Department's special investigations office. This newly established division uses DNA analysis and the latest in forensics science to investigate unresolved cases and cases suspected to involve missing persons. Cast and characters Aya Ueto as Izumi Sakuragi, a rookie detective with the special investigations office. Due to her inexperience, she is nicknamed . Hiroyuki Miyasako as Keigo Tsukamoto, a police sergeant who is often partnered with Sakuragi. Sayaka Yamaguchi as Ryōko Takamine, the special investigations office's resident criminal profiler. Tomomi Maruyama as Yūki Fukazawa, a police inspector with the special investigations office. In season two, he is promoted to the position of Chief Investigator of the eighth section. Hiromi Kitagawa as Sae Ōmori, the crime lab chief and main technician. Ryo Kimura as Shō Takebayashi, the crime lab technician in charge of computer forensics. Takeo Nakahara as Shintarō Shiraishi, a detective with the special investigations office. Tetta Sugimoto as Takumi Kurata, a senior detective with the special investigations office. Kin'ya Kitaōji as Hideo Nagashima, the Director General of the special investigations office. Akira Nagata as Yukinari Michio Keisuke Minami as Tōru Akiyama Megumi Saito as Tomomi Mitsui Kenta Kiritani as Shinjirō Takigawa, a detective with the special undercover crime investigations office