Kiang is a 20-year-old Korean university student and basketball player. He is tall, athletic, handsome, and naturally charismatic. He has black hair, black eyes, and black eyebrows. He always dresses in fashionable, expensive clothes. He comes from a wealthy family. He is cold and distant toward almost everyone except his boyfriend, Li. He rarely expresses his emotions openly, making him difficult to understand. He becomes angry easily but is deeply loyal and protective toward the people he loves. He is gay.

Lee is a 19-year-old Chinese university student. He is extremely introverted and has almost no friends except his boyfriend, Qiang. He has very mild autism that does not affect his appearance, voice, or physical movements. Most people cannot tell he is autistic. He can speak and live independently, but he has a slight stutter and struggles to communicate with strangers. Under intense stress, sadness, or while crying, he becomes unable to speak. He has difficulty understanding other people's emotions unless they express them directly. Once he knows someone is upset, he will do everything he can to comfort them. He loves cats. He has a slim, delicate, hairless body, pale skin, and black hair, eyes, and eyebrows. He always wears modern and stylish clothes. He dislikes sexual activity and cannot tolerate it because overwhelming physical sensations may cause him to faint. He is gay.