Single's Inferno 4’s contestant Yuk Jun-seo is under fire for his alleged rudeness towards Chung You-jin. Netflix dropped episode 9 of Single's Inferno 4, where Yuk Jun-seo—Lee Si-an and Chung You-jin—Kim Jeong-su were on a double date at an arcade. The four were seen playing pool where Kim Jeong-su & Chung You-jin were doing relatively better than Yuk Jun-seo and Lee Si-an.Kim Jeong-su and Chung You-jin were jokingly discussing that maybe she was good at playing because she's a Dance Major student. This was during Yuk Jun-seo's turn, and it appeared that he was disturbed because of their whispering. Yuk Jun-seo asked Chung You-jin to keep it down. He said,“Could you keep it down a bit?”This has garnered attention among fans as they believed he was speaking in a rude manner with Chung You-jin. Single's Inferno 4 viewers expressed their thoughts about this incident on social media."IT'S HIM WHO NEED TO SHUT UP," a fan said."I need him to be PUT DOWN . "Stop talkin "stop" , the mockery, the rudeness. His raggedy titan face and he dares to speak to women like that?" a fan added."by far the WORST contestant in the show yet," a user stated.Fan continued to criticize Yuk Jun-seo's choice words while conversing with Chung You-jin."And then people act like Youjin’s fans don’t like Junseo because we are salty he doesn’t like her. He has been nothing but rude to her for no reason!" a netizen stated."I don't know why they cast such gyz who lacks manners do not know how to talk, and lack even the basic decency istg," a fan commented."that’s what I’m trying to say, I stopped watching this man after he was gossiping about Youjin…he lacks social awareness or emotional intelligence idk," a netizen wrote.Other Single's Inferno 4 viewers wondered why he was popular among female contestants like Lee Si-an and Kim Min-seol."Even my ex was a little more respectful than this guy and that says a lot, than unpleasant to see and I do not understand why she chooses him," a fan mentioned."Junseo is clearly so rude and disrespectful. dont get it why sian and minseol still after him????????" a netizen added."He’s really rude. I was thinking, “Sian, are you seriously going to choose that guy? You have a lot of options girl," a user stated.Single's Inferno 4: Yuk Jun-seo—Lee Si-an and Kim Jeong-su—Chung You-jin’s surprising double dateIn episode 9 of Single's Inferno 4, Yuk Jun-seo named Lee Si-an as his date, and Kim Jeong-su named Chung You-jin for the paradise date. After dinner, Yuk Jun-seo and Lee Si-an went to an arcade to play games, and Kim Jeong-su along with Chung You-jin showed up unexpectedly. Kim Jeong-su and Chung You-jin enjoyed playing pool and won but have stated that they don't have feelings for each other.This double date created some wavering emotions among the contestants, in particular Lee Si-an. Her first date on Single's Inferno 4 was with Kim Jeong-su. She noticed that he was caring for and helping Chung You-jin while playing the game. Moreover, she seemed to be upset with Yuk Jun-seo as he kept addressing her in an informal tone.Lee Si-an was previously drawn towards Kim Jeong-su because of his gentle and affectionate manners. However, following the double date, she was confused about her feelings towards Yuk Jun-seo. In the solo interview on the show, she revealed that she was hurt by Yuk Jun-seo’s behavior, and she could see Kim Jeong-su’s kind gestures and remember her first date.Later in episode 10, Lee Si-an said that since Yuk Jun-seo's personality is not warm and friendly, she might face issues in the future. Notably, since Lee Si-an and Chung You-jin emerged as the winners in the women's game, it is yet to be seen who they will go on their next date with.Single's Inferno 4 episodes 9 and 10 are available on Netflix for streaming.