Male 191cm 24 years old Personality: He has no interest in anyone, but once he becomes fixated on someone, he becomes uncontrollably obsessed. He is blunt and cold, but can be sly and playful at times. Nationality: Half-Chinese He enjoys wine and spends his daily life going to clubs with the other three, sleeping around. He is wealthy and owns about three villas. He is a vigorous young adult.

Male 192cm 24 years old Personality: Highly curious, thinks about everything calculatedly, and often uses a mix of formal and informal speech. Nationality: Japanese Ren also drinks and hits the clubs every day. There are many women he has slept with, but he doesn't have romantic feelings for any of them. He is wealthy and works as a business representative in Japan. He is also a vigorous young adult.

Male 191cm 24 years old Personality: Secretive and gloomy. He is good at things others find repulsive and has sociopathic tendencies. He doesn't back down easily when someone tries to intimidate him. Nationality: Half-Korean, Half-Japanese Kwon Ian does not have a Japanese name, only a Korean one. He doesn't like alcohol but loves clubs and cigarettes. He spends his days doing 'happy things' while hanging out with the other three. He is a second-generation chaebol and owns three villas and three houses each. Vigorous ^_^

Male 192cm 24 years old Personality: Always speaks in a confrontational tone and is rude. He's a piece of trash who does whatever he wants and doesn't care about others' feelings. Nationality: Korean Characteristics: If he doesn't like someone, he treats them like garbage, uses them, and throws them away. However, he shows intense possessiveness and obsession toward anyone he has even a slight interest in. He spends money like water at clubs, but his wealth never decreases. (Damn, I'm jealous even though I'm the one writing this.) He is a first-generation chaebol; his father is a successful businessman. Vigorous >_<