Subete ga F ni Naru (すべてがFになる, lit. Everything Becomes F and subtitled The Perfect Insider) is a Japanese 1996 mystery novel by Hiroshi Mori. It has been adapted into a manga, a visual novel, and a live action drama. An anime television series adaptation produced by A-1 Pictures premiered in Japan on October 8, 2015.
Sōhei Saikawa, an associate professor of architectural engineering, and Moe Nishinosono, the daughter of his mentor, travel to a remote island. While there, the two work together to solve the murders of a prominent artificial intelligence researcher and the director of the lab located on the island.
Sōhei Saikawa (犀川 創平, Saikawa Sōhei)
Voiced by: Yasuyuki Kase (anime), Shigeru Shibuya (visual novel), Actor portrayal: Gō Ayano
An associate professor of architecture at National N University. He has gained the admiration of Moe, but doesn't seem to reciprocate her feelings. He is extremely intelligent, he has detached himself from the world, and has no interest in fashion. He loves coffee and cigarettes, and hates watermelon, red beans, and soybean flour.
Moe Nishinosono (西之園 萌絵, Nishinosono Moe)
Voiced by: Atsumi Tanezaki (anime), Sanae Kobayashi (visual novel), Actor portrayal: Emi Takei, Ai Uchida (young)
The daughter of Sōhei's mentor, and a first year student in the architecture department of N University. She is a beautiful young woman from a high-class family. She has excellent insight, powers of observation, and calculation skills, but sometimes her thoughts jump to extreme conclusions. She loves mystery novels and the sound of car engines. She hates dried shiitake mushrooms, but because she believes they are good for anemia, she enduringly eats them every day.
Shiki Magata (真賀田 四季, Magata Shiki)
Voiced by: Ibuki Kido (anime), Satomi Kōrogi (visual novel), Actor portrayal: Akari Hayami
A genius programmer who was accused of killing her parents when she was 14, but she was found innocent due to her psychological condition. She lives in isolation at a private research lab on a remote island.
Seiji Shindō (新藤 清二, Shindō Seiji)
Voiced by: Shunsuke Sakuya (anime), Ken Yamaguchi (visual novel), Actor portrayal: Norimasa Fuke
The head of the Magata Research Institute. He is Shiki's uncle. His hobby is to fly helicopters.
Yumiko Shindō (新藤 裕見子, Shindō Yumiko)
Voiced by: Sayaka Kobayashi (anime), Actor portrayal: Kumiko Fujiyoshi
Seiji's wife. She knew Shiki in her early childhood. Her speciality is making sweets.
Yukihiro Yamane (山根 幸宏, Yamane Yukihiro)
Voiced by: Tatsuhisa Suzuki (anime), Takashi Yoshida (visual novel), Actor portrayal: Go Riju
The assistant head of the Magata Research Institute.
Tomihiko Yuminaga (弓永 富彦, Yuminaga Tomihiko)
Voiced by: Bin Sasaki (anime), Toshihiro Shigetsuka (visual novel), Actor portrayal: Yasuto Kosuda
The resident doctor at the Magata Research Institute.
Chikara Mizutani (水谷 主税, Mizutani Chikara)
Voiced by: Kentarō Itō (anime)
An employee at the Magata Research Institute who is one of the few who has been at the institute since its establishment.
Ayako Shimada (島田 綾子, Shimada Ayako)
Voiced by: Yoko Hikasa (anime)
An employee at the Magata Research Institute. She is a programmer.
Toshiki Mochizuki (望月 俊樹, Mochizuki Toshiki)
Voiced by: Hiroshi Shimozaki (anime)
A security guard at the Magata Research Institute.
Satoshi Hasebe (長谷部 聡, Hasebe Satoshi)
Voiced by: Atsushi Imaruoka (anime)
A security guard at the Magata Research Institute. His hobby is playing the marimba.
Miki Magata (真賀田 未来, Magata Miki)
Voiced by: Yuko Kaida (anime)
Shiki's younger sister. She lives with a relative in America.
Momoko Kunieda (国枝 桃子, Kunieda Momoko)
Voiced by: Houko Kuwashima (anime), Actor portrayal: Erena Mizusawa
An architecture student at N University. She assists Sōhei Saikawa with his accounts. Since she has an androgynous look and also has a very straightforward way of speaking, the other students are afraid of her.
Fukashi Hamanaka (浜中 深志, Hamanaka Fukashi)
Voiced by: Taishi Murata (anime)
A student at N University who works in Sōhei's lab. He is in charge of planning the seminar trip, and finds himself camping on Himaka island, where the Magata Research Institute is located.
Setsuko Gidō (儀同 世津子, Gidō Setsuko)
Voiced by: Yui Horie (anime)
A beautiful fair-skinned woman who is a magazine reporter. She has a close relationship with Sōhei, so she knows about his dislike of red beans and calls him "Sōhei-kun."
Suwano (諏訪野)
Voiced by: Katsumi Chō (anime)
A butler who has served the Nishinosono family for many years. He looks after Moe's everyday needs.
It won the Mephisto Prize for unpublished genre fiction novels and was published by Kodansha. It is the first volume of the S&M (Professor Saikawa and his student Moe) series. Nine additional volumes were published between 1996 and 1998. There are some short stories belonging to the S&M series. Two of those, "The Rooftop Ornaments of Stone Ratha" and "Which Is the Witch?", were translated into English and published by the BBB.
A manga adaptation drawn by Torao Asada was serialized in Gentosha's Comic Birz magazine in 2001.
A PlayStation visual novel adaptation was developed by KID and released in March 2002.
A 10-episode drama television series adaptation aired between October and December 2014. The drama series stars Gou Ayano as Sohei Saikawa and Emi Takei as Moe Nishinosono. Although the series is titled The Perfect Insider, it is a collection of Saikawa and Moe stories.
An anime television series adaptation, directed by Mamoru Kanbe, written by Toshiya Ono, and produced by A-1 Pictures, premiered on Fuji TV's Noitamina programming block on October 9, 2015. The opening theme is "Talking" by Kana-Boon and the ending theme is "Nana Hitsuji" (ナナヒツジ) by Scenarioart.
