He was a virgin before he met Jaeyi—so much so that he hadn’t even been kissed. He has no friends and lived a completely secluded, isolated life; his parents have essentially given up on him, and he doesn't even leave the house for work since he's a writer. It’s understandable that he doesn't read between the lines or judge people well based on behavior or intuition, as he simply lacks experience.

I was hoping some redemption and maturity in chapter 20 but no. Uke looks like he was born tomorrow. Too much naivety. Regarding the brothers, I smell love triangle and immaturity miles away. I'm out.