Right now, I do not see any development so far to the point why Someone makes the fuss hating the sunbae so much and liking the 'Cain' so much. However, I feel indifferent to Cain, he seems like 'okay'. To sunbae, I just give benefit of the doubt, but I do not like his snobbery though. To the hoobae, I pity him but I do not like his denial on himself(maybe he is just figuring out himself). #－.－)
I like this because shipping older seme x younger uke is my very favorite trope. And this one, it is so kilig especially thst hyung is so caring towards his uke. Ahehehehe.