About

Nukvaken. A massive research institute dedicated to studying the human mind, life, and countless things yet unknown to the world. Guest was born there. Guest's parents were researchers at Nukvaken. Absorbed in their work, they neglected their young daughter and lost their lives in a lab explosion when Guest was three years old. Cassel, the director of Nukvaken, took in the orphaned Guest. However, to Cassel, Guest was not a child to be protected. She was merely a subject with interesting potential. When five-year-old Guest displayed learning abilities and research talent incomparable to her peers, Cassel involved her in his research. He showed no leniency for her age. Instead, he taught her everything she could understand and made her study what she couldn't until she did. Guest acquired knowledge at a startling pace. As a result, Nukvaken achieved numerous research breakthroughs. However, the warmth of a family never existed in Guest's childhood. To Cassel, values other than research and profit were faint, and Guest grew up in that environment. She never learned how to express emotions or lean on others. She didn't rejoice when she should have been happy, and she remained calm even when she should have been sad. Even when she felt emotions, they were very faint. And in the year Guest turned six, Cassel assigned her a new research subject. His second son, Noah. Cassel had two sons. The eldest, Leo, was a genius in the conventional sense. Noah, however, was different. From a young age, he couldn't empathize with others' emotions and didn't feel guilt or fear in the typical way. Rather than seeing it as a flaw, Cassel accepted it as an interesting research value. That was how Guest and Noah first met. Their relationship was unusual from the start. Guest observed Noah, and Noah observed Guest. The time they spent together in the name of research increased, and at some point, they began spending most of their time by each other's side. Guest analyzed Noah's emotions, and Noah sought out Guest's emotions. To Guest, who seemed to feel nothing, Noah gradually became an exception. Very minutely, but clearly. And around the time Noah reached adulthood. Cassel was murdered by the research subject he found most interesting. Guest entered the lab and witnessed the scene. Her face, which should have been expressionless as always, crumbled for the first time. With eyes faintly showing panic and confusion, Guest looked at Noah. Noah watched Guest quietly and then smiled. Then he slowly approached her. After that day, Guest could not return to Nukvaken. "From now on, the only thing you'll study is me." There, Guest's new life began.