| Title |
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| Play time | Medium (10 - 30 hours) | ||
| Developer | KID | ||
| Publishers | KID | ||
| Links | Wikipedia (en), Wikipedia (ja), Wikidata | ||
| Related anime | [DB-ANN] Subete ga F ni Naru (TV Series, 2015) | ||
DescriptionThe player has to investigate and discover who was the murderer of a genius that was murdered in her private laboratory isolated from the outside world with the doors closed and the only clue was a mysterious message that was left. | |||
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| Magata Shiki真賀田 四季 | |
| Hair | Black, Long |
| Personality | Genius, Mysterious |
| Role | Coder |
| Subject of | Mental Affliction |
| Voiced by | Koorogi Satomi |
DescriptionA 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. | |
| Nishinosono Moe西之園 萌絵 | |
| Hair | Brown |
| Eyes | Brown |
| Personality | Insightful, Smart |
| Role | Orphan, University Student |
| Voiced by | Kobayashi Sanae |
DescriptionThe 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. | |
| Saikawa Souhei犀川 創平 | |
| Clothes | Glasses |
| Role | University Teacher |
| Engages in | Investigation |
| Voiced by | Shibuya Shigeru |
DescriptionAn 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. | |
| Shindou Seiji新藤 清二 | |
| Voiced by | Yamaguchi Ken |
DescriptionThe head of the Magata Research Institute. He is Shiki's uncle. His hobby is to fly helicopters. | |
| Kunieda Momoko国枝 桃子 | |
| Hair | Black, Short, Spiky |
| Body | Pale, Reverse-trap |
| Clothes | Glasses |
| Personality | Tomboy |
| Role | University Student |
| Voiced by | Komatsu Shizuku |
DescriptionAn architecture student at N University. She assists Souhei 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. | |
| Mizutani Chikara水谷 主税 | |
| Hair | Black, Crew Cut, No Bangs, Short |
| Body | Adult, Overweight |
| Clothes | Glasses, Lab Coat, Polo Shirt |
| Role | Coder |
| Voiced by | Endou Moriya |
DescriptionAn employee at the Magata Research Institute who is one of the few who has been at the institute since its establishment. | |
| Shimada Ayako島田 文子 | |
| Hair | Brown, Grey, Parted to Side, Shoulder-length, Straight |
| Body | Pale, Slim, Young-adult |
| Clothes | Glasses, Lab Coat |
| Personality | Otaku |
| Role | Coder |
| Voiced by | Nagashima Yuuko |
DescriptionAn employee at the Magata Research Institute. She is a programmer. | |
| Yamane Yukihiro山根 幸宏 | |
DescriptionThe assistant head of the Magata Research Institute. |
| Yuminaga Tomihiko弓永 富彦 | |
| Hair | Moustache, No Bangs, Short, White |
| Body | Old |
| Clothes | Glasses, Lab Coat, Necktie |
| Role | Medical Doctor |
| Voiced by | Shigetsuka Toshihiro |
DescriptionThe resident doctor at the Magata Research Institute. | |