Responses
I think it's more so because Hajin became the bottom this time around as all the characters are trying to woo him. Seonwoo, that doctors son and the red head friend of his all seem to have a thing for him. I feel like him entering the story made the dynamic switch
I like how the roles of "top" and "bottom" seem a bit ambiguous, if not, flipped between the two of them, its actually quite refreshing seeing switch characters