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: "........"
Seonwoo, if you've read BJ Alex, you know that doesn't go well...