Pastlives
Thanks for the chapters again Pastlives. And in my honest opinion he should keep whole reincarnation thing a secret. He should rather embrace this new life of his as Su Mu as a second chance given by universe to him. Cause YK is gonna be dead soon so there is no point keep to think about the whole reincarnation thing. That way it would a story of profound Dual Cultivator and nothing to do with original YK timeline.
About his reincarnation and telling it to girls. I'm of the opinion that some secrets should stay with you forever, but I have nothing against him telling "part of the truth". If you tell it, then tell a slightly embellished and modified version. For example: Xiang Chen reincarnated as Su Mu, but due to the fact that his soul was quite strong, his body could not adapt to it; Therefore, until now, Su Mu had not shown any extraordinary talents and oddities in behavior, and now his soul finally woke up and was able to awaken his memory, which contributed to a change in his cultivation/talent and behavior change. This version, in my opinion, sounds quite appropriate and allows you to close some points without problems. He also can tell that he is not some multimillion old monster, but some genius from the higher realm who died at an early age (<100 years f.e.) because of his opponents, therefore, he has a lot of knowledge about cultivation and Dao (or something like that idk).
I personally like this book very much ,and I hope that the author give us constant updates like he does . Hmmm, I think that he should keep the secret about his reincarnation to himself and not tell anyone .As it is his biggest trump card and no one wants their trump card to be exposed, also I think that the girls will feel weird because they are around 20 years old while in reality su mu is a reincarnated millions of year old man. Well this are just my personal views and I hope the author does what he thinks should be the best.