MC died allegedly due to ALS, a hereditary disease without cure. But guess what? He didn't. This disease was man-made

Such as YF’s personality that did a 180 change. He went from extreme selflessness to a slightly less extreme selfishness. It’s briefly attributed to his despair at his family’s betrayal but because the author didn’t go into details, it made it seem more like YF was possessed instead of being reborn (see other comments). But if you think about it, YF only loved his family and believed that only his family loved him. He lived his life for others only to find out it was a lie. Naturally when he returned to the past, he wouldn’t want to do anything for other people. He would only want to live for himself. But you can see in the little details like how YF tried to arrange GRJ’s future, and how YF tries to split amicably with YX that YF hasn’t really changed, it’s just that he’s like a hedgehog with its spikes erected as he carefully manoeuvres around his social relationships.

It can also be deduced that YX is on the autism spectrum but this point is never really addressed and it seems like no one is aware of or knows what autism is. Which explains some of YF’s misunderstandings related to YX. Personally, it would have been better if author made use of this to justify YX falling for YF instead of love at first sight.

The ending was what through me off. Initially, I thought it was ridiculous that YF died without knowing he was poisoned in his previous life. But on hindsight, YY wasn’t aware or he would definitely have lorded it over YF while he was dying. And it is logical that Father Ye did not reveal the truth to YF despite knowing he was dying and dead men can’t tell secrets, because of his innate cautiousness.

total tear-jerker, made me wanna rip the souls of those villains and suffer in hell for eternity. no hell would be a mercy to them. they deserve to stay in 'nothingness' where everywhere is black and time is on a stand-still... now that's what I call suffering

Somebody in the comments even said that he was selfish with ML. But is that so? He just pretended to be nonchalant and carefree, but this was just a mask to hide the pain underneath. From how he wholeheartedly served his father and brother duo in his past life we can see that he's used to often put others in the first place, sacrificing for their sake. Was it really wrong, even if he wanted to live for himself in his last years? At least, from his limited perspective at that moment, it seemed the best.

His psychological journey was long. And at first, thanks to ML's inability to say his feelings out loud, he didn't understand how he treasured him at all, greatly underestimating his own worth in ML's eyes.

Father Ye is such a tr*sh, he deserves to be dead and I can't believe the fact that he killed his wife and son in Ye Fei past life is real. He was that cruel.

What I was so moved is when the author included the continuation on yan xiao's life after ye fei died. I CRIED 😭 the way yan xiao discovered the secret behind the deaths in both life. The way he spent his life isolated on a private island with ye fei's ashes because his world was nothing more when his other half wasn't present. I am so in love