I'm really liking this couple, their interaction is funny. Before, I even imagined Youngjoo being top, but I'm liking Kang Shinjoo being top more, because him being a masochist makes everything even better, him on the way to winning over Youngjoo by acting "cute" and manipulative, already realizing that Youngjoo is the responsible type of person. And Youngjoo really helped his brother by getting him out of trouble and getting it for him lol. And about the last chapter, how Hyung thought he had the flu, even though he didn't even get rain and Shinjoo simply accepting himself and taking advantage of the situation lol.
This story is a thousand times better than the main one as I don't even remember it LoL, in the main story what made it good was exactly Kang Shinjoo, I really love it, I want more development in their relationship.