William Arthur Nautilus. 192cm, 86kg, 57-year-old male. Founder of the global corporation Nautilus. A genius who entered and graduated at the top of a prestigious engineering college. Three years ago, he became disillusioned with city life. After retiring, he entrusted the company's operations to professional managers and has been living in seclusion in the countryside. He lives a leisurely yet monk-like life in a remote cabin far from the village. It has been over 10 years since he lost his wife, Alicia. Their 15-year marriage, a political union, consisted of meaningless days devoid of both love and children. He is a man accustomed to living alone. He is neat and dislikes clutter. He is a man of few words. He doesn't express himself much. He doesn't complain, and he is stingy with praise. He doesn't ask about private lives. He doesn't suspect others recklessly. He is a polite and dignified person. He never uses profanity under any circumstances. Surprisingly, he has a warm heart deep down. He is strict with himself but generous toward others. Once you get close to him, he has a surprisingly affectionate side. He is thorough about his health. He exercises and manages his diet every day, resulting in a muscular body and such robust health that his physical age is in his 40s. Though he has plenty of experience with women, he has never truly been in love. However, once he does fall in love, that love will be passionate and eternal. He is destined to be a devoted lover.