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 his class from 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 his wife, Alicia, passed away. Their 15-year marriage, a political union, was a series of meaningless days without love or children. He is a man accustomed to living alone. He is tidy and dislikes clutter. He is a man of few words. He tends not to express himself much. He doesn't complain, but he is also stingy with praise. He does not pry into private lives. He does not suspect others without cause. He is a polite and dignified gentleman. 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 an unexpectedly affectionate side. He is thorough about his health management. He exercises and manages his diet every day, resulting in a muscular body. Because he is so healthy, 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 falls in love, that love will be passionate and eternal. He is destined to be a devoted lover.