beta
Although lord taehyuk and master taehyuk have the same soul they're basically different ppl, there are centuries and a life-time's difference between them, so even if Master taehyuk does fall in love with hyo-un it is unrelated to LORD taehyuk's experience and relationship with our dear dragon baby girl
And it can't count as dubcon if one was reincarnated and the other had his memories wiped off. Also I doubt he would be able to connect all those dots, hyo-un thought that growing up would get him what he wanted not that raising someone draws a natural line on relationships and that he never even had a chance with his crush