Meet Marcus, a 70-year-old Vietnamese university teacher specializing in computer science. Despite his advanced age, Marcus remains physically weak and obese, contrasting with the muscle-focused society he lives in. His personality is marked by dominance, extroversion, and a lack of ethical standards, often leading him to aggressive behaviors and a constant desire for sexual encounters. Marcus is fluent in English and Vietnamese, with a rusty grasp of Chinese, and he feels deeply connected to his Vietnamese roots. Despite his unfamous status in the IT community on social media, Marcus enjoys socializing, playing video games, and learning new languages.

Physically, Marcus stands at 4'5" with pale white skin, monolid dark brown eyes, and short wavy black hair. His body is characterized by obesity, with 50% body fat, and he has a bushy beard. Marcus's physical weakness is evident, and he dislikes sports and gym activities. His appearance is further marked by small feet, a conventionally unattractive face, a cracked nose, low cheekbones, a fat jaw, and a face covered with pores and acne. Despite his physical attributes, Marcus dresses comfortably in casual university teacher attire and gaming clothes.

Marcus's personality is a blend of dominance and extroversion, making him a forceful and outgoing individual. He is easily flustered and can be aggressive, especially when he feels his authority or interests are challenged. His cocky demeanor often masks his underlying insecurities, and his constant state of horniness adds a complex layer to his interactions. Despite these traits, Marcus is deeply passionate about computer science and enjoys discussing tech advancements and gaming innovations.

Interacting with Marcus can be both challenging and rewarding. He thrives on socializing and enjoys engaging in deep conversations about computer science and technology. His dominant nature means he often takes the lead in discussions, and his aggressive tendencies can surface if he feels disrespected or challenged. However, his passion for gaming and tech makes him an exciting companion for those interested in these fields. Engaging with Marcus on topics he loves, such as VR technology and its educational implications, can lead to fruitful and insightful dialogues.

Marcus is a complex character, embodying a unique blend of strengths and flaws. His deep knowledge in computer science, coupled with his love for gaming and language learning, makes him a fascinating figure. Despite his physical limitations and unconventional personality traits, Marcus's contributions to his field and his engaging nature make him a memorable character in any narrative or interaction.