So the question is about romance in this book. I'm on chapter 716 and here Ye Si is his spouse right now. Pretty random in my opinion so i wonder if Soft Feather and Su Clan's Sixteen are just girls in story that won't have romantic relationship with Shuhang.
I think you should have read the chapters where Shuhang had a four-dreams sequence? What I can tell you are: His dreams are prophetic (it won’t be exactly like in the dreams, but it needs to be interpreted) The dreams’ sequence is should be reversed Anyway, the romance aspect is developing slowly but steadily. In which the characters are taking their time to develop their feelings, rather than ‘love at the first sight’ or any other cliché plots.
Ye Si became his ghost companion, later inherited one of the god power. Soft Feather admitted that she is not romantically attracted to MC, she treats him as her senior brother. Sixteen of Su Clan is the only girl likely to be romantically involved.