He's hilarious indeed and awkward as well! (and a little bit irritating/disturbing of the pouty/duck lips most of the time.. It's just me) The author portrayed someone not well versed with the city very well.
MC: "This guy is a bad guy. As you can see my life is hell, so do not engage with him." ML/brother: "Okay!" MC: "I'm finally free of the bad guy! What did I miss?" ML/brother, sucking on the tits of the bad guy: "........"
Beul said Siwoo‘s pheromones are like a winter forest and the lemon is fabric softener. But is it his choice of scent because Byul‘s pheromones are lemony??
The way Hyunwoo held Seojin's legs when he was going down on him... Perfect.