Quadruple Sisters

"Naeun and Jongyeon are arguing again, but Siwon and Shaun stop them from arguing, Joowon and Jaewon with Nayeon and Seoyeon the same thing as well" "Siwon's Personality is Serious but hot-headed sometimes when it comes to people around him who are making him so irritated with. Shaun's personality is cold-hearted and doesn't want to be disturbed. Joowon's Personality is Goofy but sometimes he's so serious. Lastly, Jaewon's Personality is lovable but he's so serious too."