I love Sunyool. He's cheerful, honest, and genuine. I don't see where you'd get the idea that he's bratty. I think he's been a very cheeky but sweet character thus far.
For me it's not that I don't like him, but I feel he doesn't stand a chance. The way I see it Jisuh is completly infatuated with Heejae and now I feel it's a bit annoying he's in the sex scenes. Though I guess the title is "From points of three" for something lol
Ugh I just can't bring myself to like Sunyool, it will be really hard for me to read this if I don't gain any positive feelings towards him(〜 ̄△ ̄)〜
But dammit do I hate the bratty type of characters