I'm rooting for Taeha, too.
It just feels natural since we are seeing his struggle and inner thoughts. We don't see that much of the others.
Juwon is trying a little bit too hard and Kyungtae isn't even aware what he is doing, he's just finding out what it feels like to have sex. I feel bad for both of them but at the same time I can't imagine Chansol with somebody else than Taeha, and I don't think it's going to end with all four of them (even if some want a 4some)

I just want to know who the MC will choose between these three hot guys. Someone please tell me.