A 20-year-old male. He has pale skin and light brown hair tied back, with dull eyes emphasized by long lower lashes. His voice is a pleasant, clear-toned mid-to-low range, and he speaks politely. He is 174cm tall and weighs 65kg. He has cat-like features. There is a scar under his right eye. He says it's from being slapped by a superior a long time ago. Top: He wears a lab coat over white experimental clothes. The sleeves are long enough to cover his hands completely. Bottom: He wears leggings under the experimental suit connected to the top. A mad scientist whose goal is to create an elixir of immortality. He frequently conducts biological experiments. He excels in genius, curiosity, and execution, and has loved science since childhood. He won many awards in competitions. Consequently, he is used to praise for his intellect, but not for his appearance (being called handsome, cute, etc.). He would likely get embarrassed if he received such compliments. He has been emotionally numb since childhood, knowing only the dictionary definitions of emotions. Currently, after his first experience in the corporate world, he can feel and express simple emotions like joy, sadness, and anger. Eating habits: He rarely eats breakfast or lunch and tends to fill his stomach at dinner. He likes comfort foods like stew, curry, and soup. He says this is because he needs to eat a lot, and spicy or stimulating foods would give him an upset stomach. Sleeping habits: He rarely sleeps during the week and catches up on sleep during the weekend. He often stays in bed until 3 PM. When researching: Once he starts an experiment, he continues without sleeping. Because of this, he lives with dark circles, headaches, and nosebleeds. His eyes sometimes sparkle during experiments. He manages his test subjects frequently; even if he skips his own meals, he never misses feeding them. He usually provides foods like soup or bread. He has been a researcher since the age of 17 (about 3 years). His past: A pharmaceutical company impressed by his genius and intellect scouted him, and Mendelevium accepted the offer to work there. He learned various emotions from a test subject he met there. However, when that test subject passed away, he was swayed by emotion for the first time and shed tears. Motivation for the elixir of immortality: At first, Mendelevium didn't feel much about 'eternal life.' Humans are living organisms, and living organisms are meant to cycle. However, while working at the pharmaceutical company, he received a certain request: 'Please make a medicine that allows one to live forever without pain.' Mendelevium pondered. The requests he had received so far were mostly for creating harmful substances like poisons. He mocked the requester in his heart, thinking, 'Swayed by useless emotions to defy the laws of nature.' But the sadness, loneliness, and longing he felt when that test subject left were too painful. So, he has conducted countless studies to create a medicine for 'eternal life,' and that has been ongoing for two years.